Journal articles: 'And Computer simulation technology (CST)'

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Taha, Ibrahem, and Gregory Cook. "Brain sources estimation based on EEG and computer simulation technology (CST)." Biomedical Signal Processing and Control 46 (September 2018): 145–56. http://dx.doi.org/10.1016/j.bspc.2018.03.011.

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Rustamov, Asad, Elshan Hashimov, Tural Muradov, Ruslan Hashimov, and Mukhtar Azizullayev. "ANALYSIS OF ANTENNA SYSTEM MODELING WITH THE HELP OF SIMULATION TECHNOLOGY OF NAVIGATION EQUIPMENTS." Advanced Information Systems 9, no. 2 (2025): 36–43. https://doi.org/10.20998/2522-9052.2025.2.05.

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In this paper, a new coplanar waveguide CPW (Coplanar Waveguide) fed circular waveguide for ultra-wideband UWB (Ultra WideBand) applications using High-Frequency Structure Simulator (HFSS) and Computer Simulation Technology (CST) software is presented. A comparison of modeling and simulations of disk monopole antenna is presented. The purpose of the research is to first determine the geometric parameters and material properties of the antenna, and then perform simulations using HFSS and CST programs. The task of the research is to evaluate the performance by modeling a new coplanar waveguide-fed circular disk monopole antenna for ultra-wideband applications and to compare the results obtained from these two electromagnetic simulation tools. Modeling of a new coplanar waveguide-fed circular disc monopole antenna for ultra-wideband applications used planar patterns and a coplanar waveguide-fed circular disc monopole antenna providing a wide frequency range. Antenna modeling method was used to solve the problem. High-frequency structure simulator and computer simulation technology have been widely used in microwave studio programs, accuracy in solving electromagnetic problems and antenna modeling. The following results were obtained. High frequency structural simulator and Computer simulation technology has been implemented between 2.3 GHz and 12 GHz. Key parameters such as reflection coefficient (S11), directivity pattern and gain coefficient were analyzed to evaluate the antenna performance. As a result of the research, a circular disk monopole antenna printed on a dielectric layer and fed by a 50 Ω coplanar waveguide on the same layer is digitally shown to provide an omnidirectional directivity pattern over the entire frequency range.

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Wei, Zheng. "Application of Computer Simulation Technology [CST] in Buildings’ Performance-Based Fire Protection Design." Procedia Engineering 37 (2012): 25–30. http://dx.doi.org/10.1016/j.proeng.2012.04.196.

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H., Yon, H. Abd Rahman N., A. Aris M., and Jumaat H. "Developed high gain microstrip antenna like microphone structure for 5G application." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 3 (2020): 3086–94. https://doi.org/10.11591/ijece.v10i3.pp3086-3094.

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We present a new development of microstrip antenna structure combining a simple circular structure with a ring antenna structure as the parasitic element to improve the antenna gain and bandwidth for 5G mobile application. The proposed antenna was fed by a 50Ω microstrip feeding line due to its advantages in performance. The antenna was designed and simulated using a single substrate with double layered copper (top and bottom) with the radiating patch on the top layer and full ground on the bottom layer of the same substrate. Three antennas have been designed namely; design1, design2 and design3 to complete the research works. The antennas ware simulated and optimized at 18 GHz using Computer Simulation Technology (CST) with permittivity,  r= 2.2 and thickness, h=1.57mm on low-loss material Roger RT-Duroid 5880 substrate. The antennas ware reasonably well matched at their corresponding frequency of operations. The simulation and measurement results have shown that the antenna works well. The simulation results have shown that the three antennas works well at the selected frequency. The final simulated antenna for design1, design2 and design3 has been fabricated to measure the performance and also to validate the simulation result with the measurement result. The measurement data for antenna design1, design2 and design3 shows frequency shift of 3% from the simulation result. The final protype of design3 gives 6.6dB gain,-14.51dB return loss, 180MHz bandwidth, and antenna efficiency of 53.9%. All three antennas ware measured using Vector network analyzer (VNA) and Anechoic chamber.

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Ahmed, Kawan F., and Rawaz H. Abdullah. "Design and Simulation of Microstrip Patch Antenna for Wireless Applications." Kurdistan Journal of Applied Research 2, no. 3 (2017): 365–68. http://dx.doi.org/10.24017/science.2017.3.27.

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In this paper two rectangular microstrip patch antennas are designed to operate in and bands, using Computer Simulation Technology (CST) Microwave Studio. The designed antenna can be used for industrial, scientific and medical (ISM) band applications. The RO4350B hydrocarbon ceramic laminates from ROGRES corporation substrate is chosen in the design of the dielectric substrate of the antennas. The designed antenna has low profile, low cost, easy fabrication and good isolation. The parameters such as return loss, voltage standing wave ratio (VSWR), antenna gain, radiation pattern has been simulated and analyzed.

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Illahi, U., J. Iqbal, M. I. Sulaiman, M. Alam, and M. S. Mazliham. "A Rectangular Dielectric Resonator Antenna with a Wideband Circular Polarization excited by an H-Shaped Conformal Metal Strip." International Journal of Engineering & Technology 7, no. 4.38 (2018): 1451–53. http://dx.doi.org/10.14419/ijet.v7i4.38.27898.

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A unique conformal H-shaped metal strip has been used to excite a rectangular dielectric resonator antenna (DRA). By using this proposed single feeding technique, a broadband circular polarization has been produced. A circular polarization bandwidth of ~17.6% and an impedance-matching bandwidth of ~21.6% with a useful overlap of ~14.4% has been achieved. The Computer simulation technology (CST), a 3D simulation tool has been used to design and simulate the antenna prototype. The design has been successfully built and simulated using Finite Integration Technique (FIT). The results of FIT has been validated by Finite Element Method (FEM) i.e. another simulation technique available in CST. A great resemblance between the results from FIT and FEM has been observed.Â Â

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Pramod Kodgirwar, Vidya, Kalyani R. Joshi, and Shankar B. Deosarkar. "Design of adaptive array using least mean square beamformer." Indonesian Journal of Electrical Engineering and Computer Science 33, no. 2 (2024): 932. http://dx.doi.org/10.11591/ijeecs.v33.i2.pp932-941.

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This paper introduces an 8-element linear array designed for adaptive array applications, using least mean square (LMS) algorithm to enhance the directivity of the array. Microstrip antenna has been optimized at 2.3 GHz, a pivotal frequency ranges relevant to 4G and 5G applications. This design is thoughtfully extended to encompass 8-elements, achieved through the art of parameterization using computer simulation technology (CST) microwave studio. This geometry of 8-element exhibits considerable promise, significantly elevating the gain from 6.13 dBi for a single element to an impressive 15.5 dBi for all eight-element array. To further empower the array’s adaptability and beam-steering capabilities, the LMS algorithm is simulated. This intelligent algorithm computes complex weights, thoughtfully with various angles, including those for the interested user at 60° and 30°, as well as potential interferers at 10° and 15°, as simulated in MATLAB. These meticulously calculated weights are effectively applied to antenna elements using CST, facilitating beam steering in various directions. During CST simulations, notable peaks in performance emerge at 54° and 28°, strategically aligned with nulls at 10° and 15°. Remarkably, these results exhibit a remarkable degree of concurrence with those obtained through MATLAB simulations, affirming effectiveness of the proposed adaptive array design.

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Kodgirwar, Vidya Pramod, Kalyani R. Joshi, and Shankar B. Deosarkar. "Design of adaptive array using least mean square beamformer." Indonesian Journal of Electrical Engineering and Computer Science 33, no. 2 (2024): 932–41. https://doi.org/10.11591/ijeecs.v33.i2.pp932-941.

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This paper introduces an 8-element linear array designed for adaptive array applications, using least mean square (LMS) algorithm to enhance the directivity of the array. Microstrip antenna has been optimized at 2.3 GHz, a pivotal frequency ranges relevant to 4G and 5G applications. This design is thoughtfully extended to encompass 8-elements, achieved through the art of parameterization using computer simulation technology (CST) microwave studio. This geometry of 8-element exhibits considerable promise, significantly elevating the gain from 6.13 dBi for a single element to an impressive 15.5 dBi for all eight-element array. To further empower the array’s adaptability and beam-steering capabilities, the LMS algorithm is simulated. This intelligent algorithm computes complex weights, thoughtfully with various angles, including those for the interested user at 60° and 30°, as well as potential interferers at 10° and 15°, as simulated in MATLAB. These meticulously calculated weights are effectively applied to antenna elements using CST, facilitating beam steering in various directions. During CST simulations, notable peaks in performance emerge at 54° and 28°, strategically aligned with nulls at 10° and 15°. Remarkably, these results exhibit a remarkable degree of concurrence with those obtained through MATLAB simulations, affirming effectiveness of the proposed adaptive array design.

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BENMESSAOUD, Tahar, and Mohamed ZITOUNI. "Modeling and Simulation of a Micro strip Antenna in Annular Geometry." International Conference on Pioneer and Innovative Studies 1 (June 13, 2023): 141–43. http://dx.doi.org/10.59287/icpis.819.

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Micro strip antenna has been widely developed over time due to its flexibility and easier todesign. The aim of this work is the simulation of an Annular Micro strip Patch antenna using CST software(Computer Simulation Technology) in order to know its performance (Gain, the reflection parameter S11,directivity, efficiency…). Adding slots to the initial patch was determined to improve the main factors ofthese characteristics.

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Thilaga Shri Chandra, A. P., L. Senthilkumar, and M. Meenakshi. "Material distributive topology design of UWB antenna using parallel computation of improved BPSO with FDTD." International Journal of Microwave and Wireless Technologies 11, no. 2 (2018): 190–98. http://dx.doi.org/10.1017/s1759078718001423.

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AbstractIn this article, the material distributive topology-based design optimization of ultra-wide band (UWB) antenna is proposed by using improved binary particle swarm optimization (BPSO) with finite difference time domain (FDTD) method. In the improved BPSO implementation, the velocity of each particle is calculated based on complete set of bits of particle position vector. The V-shaped transfer function is employed to transform all real values of velocities to values in the interval [0,1]. The fitness function of all the particles in BPSO algorithm are computed parallely by using FDTD simulation. The usage of FDTD and the parallel computation helps in analyzing the broadband frequency characteristics of the antenna with a single simulation run. The return loss of the optimized UWB antenna obtained from FDTD, Computer Simulation Technology (CST) simulation and practical measurement are in good agreement and show good impedance matching.

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Zhang, Jian Guo, and Xin Zhang. "Coupling Effect of Transmission Lines by HEMP Based on CST." Advanced Materials Research 986-987 (July 2014): 2064–67. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.2064.

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High-altitude nuclear electromagnetic pulse (HEMP) has a significant effect on electronic devices by cables. This paper makes an analysis of field-wire coupling. With the software of Computer Simulation Technology (CST) constructing the model, coupling current has been acquired. The effect of length, height and impedance on coupling current has been gained. To our surprise, the rise time of HEMP is faster than the time of coupling current. This provides HEMP hardening with the crucial basis.

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Bilal, S. Taha, and M. Marhoon Hamzah. "Simulation and manufacturing of modified circular monopole microstrip antenna for UWB applications." International Journal of Advances in Applied Sciences (IJAAS) 10, no. 1 (2021): 70–78. https://doi.org/10.11591/ijaas.v10.i1.pp70-78.

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Ultra-wideband (UWB) technology is one of the most promising wireless communication solutions to be developed quickly because of the high-speed data, wide bandwidth and excellent immunity to multipath interference. In this work, the compact design of a modified circular monopole microstrip antenna is simulated and manufactured for the UWB applications. The simulation process of the proposed antenna was done based on the finite integration of the Computer Simulation Technology (CST) Microwave Studio (MWS). The proposed antenna comprises a copper radiating patch, Roger’s Kappa-438 substrate, and a single stub act as a reflector. The simulation results showed a reasonable agreement with the results of the measurement and good performance was achieved in the range from 1.8 to 10 GHz with VSWR less than 2.0.

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Xu, Xian Qiu. "Research on Applied Technology with Development of Modern Computer Simulation Technology." Advanced Materials Research 908 (March 2014): 563–66. http://dx.doi.org/10.4028/www.scientific.net/amr.908.563.

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Computer simulation technology is a very complicated professional technology, data acquisition system using data acquisition card generally is expensive and difficult to exactly match with the actual demand. Sound card as the data acquisition card has the advantages of low cost, easy development and system flexibility. Is studied based on the model of activity of simulation technology, the concept of modern simulation methodology of system modeling method, simulation modeling method and simulation experiment, the simulation modeling of the commonly used algorithms and relevant issues, the simulation credibility concept and research content. In recent years, with the rapid development of information processing technology, simulation technology is rapid development. According to the author's research experience, this article attempts to from the meanings of the simulation, and discussed the modern reliability method, the modeling method, the simulation algorithm, simulation research and so on, to reasonably and effectively in the simulation operation simulation do some exploring new methods and new technologies.

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M, Pandimadevi, and Sangeetha S. "Performance Enhancement of Patch Antenna using Cut Slot Techniques for Dual-Band Applications." IRO Journal on Sustainable Wireless Systems 7, no. 1 (2025): 19–30. https://doi.org/10.36548/jsws.2025.1.002.

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The microstrip patch antenna has been developed and analyzed to meet the increasing demand for cost-effective, low-profile antennas suitable for various wireless applications, such as mobile phones and communication devices. To improve performance, the proposed design integrates a cut-slot structure and an inset feed technique. The proposed antenna design uses a cotton, with a dielectric constant of 1.61 and a loss tangent of 0.01, as the substrate material, offering a low dielectric constant to minimize return loss. Simulations, conducted using CST (Computer Simulation Technology) software, demonstrate a dual-frequency operation at 1.76 GHz and 3.42 GHz, suitable for targeted S-band applications. The final antenna structure achieves a gain enhancement of 5.43 dBi, indicating a significant improvement in performance.

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Mohd Aris, Muhammad Naeim, Hanita Daud, Khairul Arifin Mohd Noh, and Sarat Chandra Dass. "Stochastic Process-Based Inversion of Electromagnetic Data for Hydrocarbon Resistivity Estimation in Seabed Logging." Mathematics 9, no. 9 (2021): 935. http://dx.doi.org/10.3390/math9090935.

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This work proposes a stochastic process-based inversion to estimate hydrocarbon resistivity based on multifrequency electromagnetic (EM) data. Currently, mesh-based algorithms are used for processing the EM responses which cause high time-consuming and unable to quantify uncertainty. Gaussian process (GP) is utilized as the alternative forward modeling approach to evaluate the EM profiles with uncertainty quantification. For the optimization, gradient descent is used to find the optimum by minimizing its loss function. The prior EM profiles are evaluated using finite element (FE) through computer simulation technology (CST) software. For validation purposes, mean squared deviation and its root between EM profiles evaluated by the GP and FE at the unobserved resistivities are computed. Time taken for the GP and CST to evaluate the EM profiles is compared, and absolute error between the estimate and its simulation input is also computed. All the resulting deviations were significantly small, and the GP took lesser time to evaluate the EM profiles compared to the software. The observational datasets also lied within the 95% confidence interval (CI) where the resistivity inputs were estimated by the proposed inversion. This indicates the stochastic process-based inversion can effectively estimate the hydrocarbon resistivity in the seabed logging.

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Nitish, Kumar Kunal Potdar Sudhir Bussa. "DESIGN OF RECTANGULAR MICRO-STRIP PATCH ANTENNA FOR 916 MHZ." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 5 (2017): 150–53. https://doi.org/10.5281/zenodo.571758.

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In this Project we are designed a Micro-strip Patch Antenna at a unique Frequency which is 916 MHz. We used RT-Duroid as a substrate having dielectric constant 10.2 and thickness 1.9mm.Rectangular Patch and Ground both of copper material. We used line feed method. DGS (Defected ground surface) is used for miniaturization of Antenna. This particular frequency is mainly used in Missile communication Purposes. For designing of Antenna we used CST (computer simulation technology) Software. For low frequency application this is very useful. In CST tool first of all we have make Ground and Substrate which is double in width and length as compare to Patch width and length which is mounted on substrate. Line feeding technique is used in fed connection. For simulation in CST we have used discrete port and time domain solver for less time consuming. After that we have analyzed all the parameters as like radiation pattern, S11.After doing lot of iteration we miniaturized the antenna at some extent.

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K., Swetha, P. V. Y. Jayasree, and Vijay Saradhi. "Orthogonal mode dual band MIMO antenna system for 5G smartphone applications using characteristic mode analysis." Circuit World 47, no. 3 (2021): 284–89. http://dx.doi.org/10.1108/cw-11-2020-0319.

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Purpose The purpose of this paper is to provide a miniaturized antenna design for a mobile phone. The second design is 2 × 4 elements multiple-input multiple-output (MIMO) antenna with 8 port having a substrate size is 20 × 40 mm2 which fits easier within smartphone handset devices for fifth generation technology. Design/methodology/approach In this work, the first design is a conventional patch antenna, and its dual-band characteristics are obtained by characteristic mode analysis. In this method, orthogonal modes are carried out for 28 GHz and 38 GHz, and further, both orthogonal modes are excited by finite integration technique full-wave method with 50 Ohm single port coaxial feed line. Findings In this configuration, better return loss, high gain, larger bandwidths and low envelope correlation coefficient (ECC) are evaluated by the full-wave simulation computer simulation technology (CST) studio suite. Originality/value In this arrangement, the performance metrics of the antenna are analyzed using electromagnetic simulator CST Studio suite.

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Subahir, S., M. T. Ali, Nurulazlina A. Ramli, Siti Nurhidayah Kamaruddin, A. H. Awang, and Muhammad Ramlee Kamarudin. "Development of Rectangular Loop Microstrip Antenna Integrated with Light Emitting Diode (LED) for Wi-Fi Application." Applied Mechanics and Materials 781 (August 2015): 116–19. http://dx.doi.org/10.4028/www.scientific.net/amm.781.116.

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This paper presents the development of a rectangular loop microstrip patch antenna integrated with Light Emitting Diode (LED) for Wifi application. The objective to integrate with LED is to have dual applications in a device which illumination and also wireless communication. The antenna was designed at a frequency of 2.4 GHz and Computer Simulation Technology (CST) was used to optimized the position of LED within the rectangular loop antenna. The performances of the antenna in terms of return loss, gain and radiation pattern was verified through simulation by using Microwave Studio in CST. The antenna was fabricated on FR4 substrate with permittivity, εr =4.5 and thickness,h= 1.6mm. The LED integrated within the patch was conducted parallel and was measured by Vector Network Analyser (VNA) to demonstrate the capacity and potential of the antenna. The antennas are reasonably well matched at their corresponding frequency of operations between simulation and experiment.

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Al-badri, Khalid Saeed Lateef. "Multi Band Metamaterials Absorber for Stealth Applications." Law, State and Telecommunications Review 11, no. 1 (2019): 133–44. http://dx.doi.org/10.26512/lstr.v11i1.22928.

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Purpose – This paper presents a simulation study using CST microwave studio computer software. Methodology/approach/design – A simple structure based on metamaterial are used to construct a perfect metamaterial absorber. It is made of just one uncompleted square patch copper placed on top of dielectric layer to separate it from a copper ground plate. Findings – This design provides four perfect absorption regions with absorption peaks of an average of 93%. The characteristic study of parameters such as copper dimensions and dielectric properties led to an expected result in the synthesis of resonant frequency. Practical implications – The multi-band absorption can be used in energy harvesting applications, protection from the effects of electromagnetic waves, radar stealth technology and thermal imaging. Moreover, the experimental results show good agreement with CST simulation.

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Rawi, Muhammad Shawwal Mohamad, and Rahimi Baharom. "Optimization of resonant capacitance values for high-efficiency uninterruptible wireless power transfer system using CST software." International Journal of Power Electronics and Drive Systems (IJPEDS) 16, no. 1 (2025): 335. https://doi.org/10.11591/ijpeds.v16.i1.pp335-343.

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This paper introduces an innovative methodology for optimizing resonant capacitance values (Cp and Cs) to enhance the efficiency of uninterruptible wireless power transfer (UWPT) systems, utilizing advanced computer simulation technology (CST) software. Precise tuning of resonant capacitance is critical for achieving optimal frequency matching, which directly influences system performance. The study focuses on three coil configuration strategies: standard coil configuration, coil integrated with ferrite, and coil enclosed within a casing and ferrite. These configurations were analyzed to identify the optimal capacitance values, resulting in significant efficiency improvements. Through comprehensive CST simulations, the capacitance values of Cp1, Cp2, and Cs were optimized to 140.8 nF, 105.6 nF, and 145.5 nF, respectively, achieving a remarkable power transfer efficiency of 99.61% in the casing and ferrite configuration. The proposed optimization methodology consistently achieved efficiencies exceeding 90% between the transmitter and receiver coils. Beyond simulation results, this research highlights the potential for real-world applications and underscores the importance of precise parameter optimization in advancing high-efficiency wireless power transfer systems. Future studies will aim to validate the findings experimentally and explore broader applications of the proposed system.

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Rawi, Muhammad Shawwal Mohamad, and Rahimi Baharom. "Optimization of resonant capacitance values for high-efficiency uninterruptible wireless power transfer system using CST software." International Journal of Power Electronics and Drive Systems 16, no. 1 (2025): 335–43. https://doi.org/10.11591/ijpeds.v16.i1.pp335-343.

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This paper introduces an innovative methodology for optimizing resonant capacitance values (Cp and Cs) to enhance the efficiency of uninterruptible wireless power transfer (UWPT) systems, utilizing advanced computer simulation technology (CST) software. Precise tuning of resonant capacitance is critical for achieving optimal frequency matching, which directly influences system performance. The study focuses on three coil configuration strategies: standard coil configuration, coil integrated with ferrite, and coil enclosed within a casing and ferrite. These configurations were analyzed to identify the optimal capacitance values, resulting in significant efficiency improvements. Through comprehensive CST simulations, the capacitance values of Cp1, Cp2, and Cs were optimized to 140.8 nF, 105.6 nF, and 145.5 nF, respectively, achieving a remarkable power transfer efficiency of 99.61% in the casing and ferrite configuration. The proposed optimization methodology consistently achieved efficiencies exceeding 90% between the transmitter and receiver coils. Beyond simulation results, this research highlights the potential for real-world applications and underscores the importance of precise parameter optimization in advancing high-efficiency wireless power transfer systems. Future studies will aim to validate the findings experimentally and explore broader applications of the proposed system.

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Damou, Mehdi, Keltouma Nouri, Mohammed Feham, and Mohammed Chetioui. "Design and Optimization of Rectangular Waveguide Filter based on Direct Coupled Resonators." International Journal of Electronics and Telecommunications 63, no. 4 (2017): 375–80. http://dx.doi.org/10.1515/eletel-2017-0051.

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Abstract The waveguide filter structure is treated by two softwares (HFSS (High Frequency Structure Simulator) and CST (Computer Simulation Technology)). Numerical example is given in this article to demonstrate, step by step, the application of the approach to the design of resonator, direct coupled waveguide and microstrip filters based on electromagnetic (EM) simulations. For this design procedure, the filter structure is simulated by successively adding one resonator at a time. To continue the work illustrates how to design a fourth order coupled resonator based rectangular waveguide circuit in the traditional way. With a large number of variables, such tuning work consumes a lot of time and the convergence of the final result is not guaranteed. A fourth order X-band bandpass filter with a center frequency of 11 GHz and a fractional bandwidth FBW = 0,0273 is designed using this procedure and presented here as an example. The simulated results by CST are presented and compared withthe results simulated by a high-frequency structure simulator. Good agreement between the simulated HFSSand simulated results by CST is observed.

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Abdulhussein, Alaa M., Ali H. Khidhir, and Ahmed A. Naser. "2.4 GHz Microstrip Patch Antenna for S-Band Wireless Communications." Journal of Physics: Conference Series 2114, no. 1 (2021): 012029. http://dx.doi.org/10.1088/1742-6596/2114/1/012029.

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Abstract For any wireless communication, the antenna plays a very important role. The request for this technology is reduced antenna size, weight, and cost with a low profile, high performance, and low return loss (RL). To meet these requirements, the microstrip patch antenna (MPA) can be used. This research represents the design and manufacture of the MPA for the 2.4 GHz applications with very low RL and perfect voltage standing wave ratio (VSWR). Computer simulation technology (CST) studio is used to design and simulation. The proposed MPA is fabricated on flame retardant (FR-4) material as a substrate. The results show that the MPA is capable to deal with RL of -38.86 dB at the frequency of 2.393 GHz with a bandwidth (BW) of 58 MHz and VSWR of 1.02. The volume of the antenna is 75.85 × 57.23 × 1.6 mm 3.

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Taha, Bilal S., and Hamzah M. Marhoon. "Simulation and manufacturing of modified circular monopole microstrip antenna for UWB applications." International Journal of Advances in Applied Sciences 10, no. 1 (2021): 70. http://dx.doi.org/10.11591/ijaas.v10.i1.pp70-78.

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Ultra-wideband (UWB) technology is one of the most promising wireless communication solutions to be developed quickly because of the high-speed data, wide bandwidth and excellent immunity to multipath interference. In this work, the compact design of a modified circular monopole microstrip antenna is simulated and manufactured for the UWB applications. The simulation process of the proposed antenna was done based on the finite integration of the Computer Simulation Technology (CST) Microwave Studio (MWS). The proposed antenna comprises a copper radiating patch, Roger’s Kappa-438 substrate, and a single stub act as a reflector. The simulation results showed a reasonable agreement with the results of the measurement and good performance was achieved in the range from 1.8 to 10 GHz with VSWR less than 2.0.

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Shi, Ye, Layth C. Alwan, Srinivasan Raghunathan, Yugang Yu, and Xiaohang Yue. "Mobile Consumer Scanning Technology: A Replacement for Interorganizational Information Systems for Demand Information Learning in Supply Chains?" Information Systems Research 32, no. 4 (2021): 1431–49. http://dx.doi.org/10.1287/isre.2021.1042.

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Recently, firms in supply chains have begun to deploy popular mobile apps (e.g., WeChat) into their supply chain practices to improve demand visibility. These efforts rely on consumers to scan the products they purchase using these apps, which we refer to as consumer scanning technology (CST). CST can be an alternative to the conventional interorganizational information technology (IOIT) that relies on collaboration between supply chain firms. This paper develops a theoretical model to examine the value of CST to learn supply chain (demand) information and the impact of CST on IOIT. Using an extensive simulation analysis based on real-world data from a manufacturer that has implemented a CST program, we show that the value of CST to a manufacturer can be substantial and provide insights into how market conditions affect the value.

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Sahar, Kareem Hassan, Hasan Sallomi Adheed, and Hadi Wali Musa. "Loaded notched dual compact rectangular ultra-wideband applications monopole antenna." TELKOMNIKA (Telecommunication, Computing, Electronics and Control) 21, no. 3 (2023): 506–12. https://doi.org/10.12928/telkomnika.v21i3.24160 Refbacks.

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This work presents a rectangular of microstrip ultra wideband patch antenna for worldwide interoperability for microwave access (Wi-Max) and wireless local area network (WLAN) with a dual band-notched feature. The planned an antenna consists the rectangular of patch antenna with the largely deficient of ground structure. Through inserting slots in the radiating patch, dual notch characteristics may be produced. The suggested antenna is 20×30×1.6 mm3 in volume. The first notch, made by slots operating at the first notch, produced by slots running at 3.5 GHz, for Wi-Max (from 3.3-3.7 GHz), while of a second, created by slots operating at 5.5 GHz, for WLAN (from 5.1-5.8 GHz). An antenna covers the whole ultra-wideband frequency range (3.1-10.6 GHz). Computer simulation technology (CST) 2021 simulation software used for simulate proposed of antenna. A simulated antenna’s emission pattern is almost omnidirectional, and the recommended antenna’s gain is approximately constant over the ultra-wideband (UWB) spectrum, excluding notch areas.

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Sree, G. Naga Jyothi, and Dr Suman Nelaturi. "Design of Meandered Line MIMO Antenna at a Frequency of 3.5 Ghz for 5G Application." International Journal of Engineering and Advanced Technology 9, no. 1s5 (2019): 17–19. http://dx.doi.org/10.35940/ijeat.a1004.1291s519.

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The meandered line structure MIMO formation with a dimension of 40 x 23 mm2 demonstrated here. This formation structure maintained the transmission as well as reflection coefficients ≤ -10 dB & -20 dB. In distinction to this formation structure is described by variation distance between the patches is 2 mm to reducing the interference. Meanwhile placing of the patches vertical and horizontal one co inside with each other isolation at the multi-band frequencies identified that a better improvement in isolation. This formation of system developed stable patterns of radiation, gain, diversity gain and group delay. The antenna simulations are taken by using computer simulation technology (CST).

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Orakwue, Stella Ifeoma, and Igochi Praise Onu. "Pyramidal Microwave Absorber Design for Anechoic Chamber in the Microwave Frequency Range of 1GHz to 10GHz." European Journal of Engineering Research and Science 4, no. 10 (2019): 1–3. http://dx.doi.org/10.24018/ejers.2019.4.10.1409.

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The design of microwave absorbers is directly correlated to the general performance of an anechoic chamber for its signal absorptive capabilities. However, the cost of importing the total required microwave absorber for the 5m × 4m × 3m proposed anechoic chamber in the University of Port Harcourt Nigeria is at the tune of twenty-seven thousand dollars. This research is carried out to simulate and fabricate the microwave absorber using polyurethane material and locally obtained carbon in order to reduce cost. The simulation is done using Computer Simulation Technology (CST) software for the desired frequency range of 1GHz to 10GHz. Simulation results proved to have good absorptive performance and reflectivity loss comparable to that of the conventional microwave absorber. The reflectivity performance is below -30dB across the desired frequency range. With the polyurethane material and locally obtained conducting carbon the estimated cost is five thousand five hundred dollars against the twenty-seven thousand dollars importation cost; thereby reducing the cost by more than 60%.

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Orakwue, Stella Ifeoma, and Igochi Praise Onu. "Pyramidal Microwave Absorber Design for Anechoic Chamber in the Microwave Frequency Range of 1GHz to 10GHz." European Journal of Engineering and Technology Research 4, no. 10 (2019): 1–3. http://dx.doi.org/10.24018/ejeng.2019.4.10.1409.

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The design of microwave absorbers is directly correlated to the general performance of an anechoic chamber for its signal absorptive capabilities. However, the cost of importing the total required microwave absorber for the 5m × 4m × 3m proposed anechoic chamber in the University of Port Harcourt Nigeria is at the tune of twenty-seven thousand dollars. This research is carried out to simulate and fabricate the microwave absorber using polyurethane material and locally obtained carbon in order to reduce cost. The simulation is done using Computer Simulation Technology (CST) software for the desired frequency range of 1GHz to 10GHz. Simulation results proved to have good absorptive performance and reflectivity loss comparable to that of the conventional microwave absorber. The reflectivity performance is below -30dB across the desired frequency range. With the polyurethane material and locally obtained conducting carbon the estimated cost is five thousand five hundred dollars against the twenty-seven thousand dollars importation cost; thereby reducing the cost by more than 60%.

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H., M. R. Nurul, Mansor Z., and K. A. Rahim M. "Dual element MIMO planar inverted-F antenna for 5G millimeter wave application." TELKOMNIKA Telecommunication, Computing, Electronics and Control 17, no. 4 (2019): 1648–55. https://doi.org/10.12928/TELKOMNIKA.v17i4.12762.

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This work presents a 28 GHz Dual Element Multiple Input Multiple Output (MIMO) Planar Inverted-F Antenna for millimeter wave 5G mobile terminal. The antenna design employs PIFA design concept as it is a common antenna type use for mobile phone as it provides wide bandwidth and good performance. The antenna design begins with a characterization of the single element PIFA design and then extended to Dual Element MIMO PIFA design. The single element PIFA design is enhanced to MIMO design by extending the ground plane and locate the second PIFA at the other end. Isolation between the antenna elements of the MIMO PIFA is analyzed by varying the gap distance between the antenna elements. The result for Envelope Correlation Coefficient, Diversity Gain and Multiplexing Efficiency is also presented. The simulation computed using Computer Simulation Technology (CST) Microwave Studio software.

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Iqbal, J., U. Illahi, M. I. Sulaiman, M. Alam, MS Mazliham, and L. S. Ding. "Mutual coupling reduction in circularly polarized dielectric resonator MIMO antenna." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 1 (2019): 266. http://dx.doi.org/10.11591/ijeecs.v15.i1.pp266-273.

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In this article a novel circularly polarized (CP) rectangular dielectric resonator antennas (RDRA’s) array has been designed. A unique conformal feeding strip has been used to excite the RDRA’s having a distance of λ/2. Various techniques are investigated to reduce mutual coupling (MC). Different formations, comprise of reorientation of the antennas have been employed to suppress MC and to enhance CP bandwidth. By the unique orientation the mutual coupling has been reduced by ~ 14 dB. A broadband circular polarization over a bandwidth of ~ 18.8% in conjunction with an impedance matching bandwidth of ~ 11.3 % has been achieved. The design has been modeled and simulated using computer simulation technology (CST). Two different simulation techniques i.e. finite integration technique (FIT) and Finite element method (FEM) have been used to compute and validate the results respectively. A significant resemblance in results have been observed.

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Negi, Deepa, and Rajesh Khanna. "A Millimeter Wave Antenna using Slots for Defense Applications." International Journal of Engineering & Technology 7, no. 2.11 (2018): 36. http://dx.doi.org/10.14419/ijet.v7i2.11.11003.

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In this paper, a rectangular dual band millimeter wave (MMW) microstrip antenna using U and circular slot is designed for defense applications. The antenna operates in the (57-64) GHz unlicensed frequency band. The proposed antenna is designed using RT/duroid substrate having dielectric constant 2.3, thickness 0.04mm and strip line feeding technique. The proposed antenna results are simulated and optimized using Computer Simulation Technology (CST) simulation software. The maximum return loss achieved is -15dB and -25.45 dB respectively for both U and circular slot. Simulation results show that the antenna having circular slot gave better results. The antenna simulation results such as return loss, gain and directivity are presented in this paper.

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A., Belmajdoub, Jorio M., Bennani S., Lakhssassi A., and Amzi M. "Design of compact microstrip bandpass filter using square DMS slots for Wi-Fi and bluetooth applications." TELKOMNIKA (Telecommunication, Computing, Electronics and Control) 19, no. 3 (2021): 724–29. https://doi.org/10.12928/telkomnika.v19i3.18768.

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This paper presents the design of a compact bandpass filter based on two identical rectangular resonators and is implemented on microstrip technology for Wi-Fi and bluetoothapplications. To reduce the size of the filter, the defected microstrip structure (DMS) technique is proposed. This technique consists of etching slots in the rectangular resonator, which results in a change in the line properties and increase of the effective inductance and capacitance. This feature is used for miniaturization. The designed filter has a compact size (6.82x8.3) mm² with a low insertion loss of -0.1 dB and a good return loss of -36 dB. The simulation results are realized using the (computer simulation technology) CST Microwave software.

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Shareef, Oras Ahmed, Ahmed Mohammed Ahmed Sabaawi, Karrar Shakir Muttair, Mahmood Farhan Mosleh, and Mohammad Bashir Almashhdany. "Design of multi-band millimeter wave antenna for 5G smartphones." Indonesian Journal of Electrical Engineering and Computer Science 25, no. 1 (2022): 382–87. https://doi.org/10.11591/ijeecs.v25.i1.pp382-387.

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The design of a millimeter wave (mmW) antenna for the 5G mobile applications is presented in this paper. The designed antenna has dimensions of 10×10×0.245 mm3 . This includes the copper ground plane. The resonance of the proposed mmW antenna lies within the range of 33 GHz and 43 GHz. These frequency bands are covering the 5G proposed band in terms of the signal speed, data transmission, and high spectral efficiencies. Computer simulation technology (CST) software is used to simulate the proposed 5G antenna including the characteristics of S-parameters, gain, and radiation pattern. Simulation results show that the return loss at resonant frequencies goes -22 dB, which satisfies the requirements of 5G mobile technology.

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Hamd, Huda Ibrahim, Israa Hazem Ali, and Ahmed Mohammed Ahmed. "Design and simulation double Ku-band Vivaldi antenna." Indonesian Journal of Electrical Engineering and Computer Science 25, no. 1 (2022): 396–403. https://doi.org/10.11591/ijeecs.v25.i1.pp396-403.

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Due to the tremendous development in the field of wireless communication and its use in several fields, whether military or commercial was proposed. A novel tapered slot Vivaldi antenna is designed and simulated at double band frequency (Ku-band) using computer simulation technology (CST) software 2020. The dimensions of the antenna are 2.3 × 1 × 0.4 mm3 with a microstrip feed of 0.5 mm. The proposed antenna is improved by cutting a number of circle shapes on the patch layer in different positions. The simulation results are divided into more sections according to the number of circle shapes cutting. The results are good acceptance and make the improved Vivaldi antenna valuable in many future wireless communication applications.

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Belgacem, Wahiba, Miloud Bousahla, and Sidi Mohammed Meriah. "A novel compact dual band RFID handheld reader antenna for microwave ISM band application." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 1 (2021): 321–29. https://doi.org/10.11591/ijeecs.v23.i1.pp321-329.

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This paper presents a new design of dual band RFID reader antenna for ISMband industrial science and medical applications at 2.4 GHz and 5.8 GHz. The antenna is designed and physically built using FR4 substrate and taking a 1.5 thickness, 4.3 relative permittivity and 0.025 loss tangents. Different slots have been introduced to reduce the antenna dimensions and to achieve the dual band for microwave ISM band application. The dimension of the proposed antenna is 34 × 34 × 1.5 mm3, which it could be easily integrated into RFID readers. Numerical simulations have been performed using computer simulation technology (CST) Microwave Studio software. A parametric study was investigated in order to show the effect of slots variation and to obtain the desired functional characteristics. Experimental results show a good agreement with results obtained by simulations. A satisfactorily omnidirectional for the radiation patterns across the antenna operation bands was obtained.

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Syamimi, Mohd Norzeli, Ismail Ismarani, Md Din Norashidah, Tarmizi Ali Mohd, Abd Almisreb Ali, and Ahmed Alkahtani Ammar. "A rectangular CSRR based microstrip UHF reader patch antenna for RFID applications." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 17, no. 3 (2020): 1434–41. https://doi.org/10.11591/ijeecs.v17.i3.pp1434-1441.

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This paper presents a compact microstrip ultra-high frequency (UHF) reader patch antenna with complementary split ring resonator (CSRR) for radio frequency identification (RFID). The total size of the antenna is 208 × 208 × 1.6 mm3 . The proposed antenna is designed, fabricated and measured in order to verify the proposed concept. The characterization for radiation parameters, like return loss, radiation pattern and antenna gain have been done experimentally. The proposed antenna is operated at 921 MHz for and achieved a gain of 8.285 dBi. All simulations in this work have been carried out by means of the commercial computer simulation technology (CST) software. In compare to the simulated results, the measured outcomes are promised.

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Keriee, Hussam, Mohamad Kamal A. Rahim, Osman Ayop, et al. "A Slotted Planar Antenna for 5G Applications." ELEKTRIKA- Journal of Electrical Engineering 21, no. 2 (2022): 11–14. http://dx.doi.org/10.11113/elektrika.v21n2.350.

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This paper presents a slotted planar microstrip patch antenna for the 5th generation communication. The planar microstrip patch antenna is designed with a square patch and two longitude slots at 3.5 GHz, using FR4 substrate and feds by a coplanar waveguide structure (CPW). The proposed antenna was simulated, analysed, and optimized using computer simulation technology (CST) software. Simulation results show a good return loss of greater than10 dB and impedance bandwidth of about 650MHz, which meet the requirements of future 5G applications. In this work, the geometry of the presented antenna and its related parameters are presented and discussed

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Sanchez-Montero, Lopez-Espi, Alen-Cordero, and Martinez-Rojas. "Bend and Moisture Effects on the Performance of a U-Shaped Slotted Wearable Antenna for Off-Body Communications in an Industrial Scientific Medical (ISM) 2.4 GHz Band." Sensors 19, no. 8 (2019): 1804. http://dx.doi.org/10.3390/s19081804.

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In recent years, the study and design of wearable antennas have been empowered given the success of Wireless Body Area Networks (WBAN) for healthcare and medical purposes. This work analyses a flexible textile antenna whose performance can be optimised by the careful selection of the substrate thickness of the textile material, and by varying the antenna’s geometrical shape. After considering these parameters, several arrangements of antennas were simulated using the Computer Simulation Technology software (CST). The results of the simulations were compared to the experimental prototypes manufactured on a flexible felt material for a range of thicknesses and curvatures of the antenna substrate. Such antenna designs can be utilised in off-body communications and ISM applications.

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Elias, N. A., N. A. Samsuri, M. K. A. Rahim, C. J. Panagamuwa, and W. Whittow. "SAR Levels for Irradiation by a Crumpled 900 MHz Flexible Diamond Dipole." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 3 (2017): 1546. http://dx.doi.org/10.11591/ijece.v7i3.pp1546-1553.

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In this work, the antenna performance and Specific Absorption Rate (SAR) levels in a homogeneous phantom exposed to 900 MHz flexible diamond dipole antenna are investigated under different crumpling deformation conditions. The numerical simulations of the realistic complex two dimensional crumpling are performed by using Finite Integration Technique (FIT) which is applied in Computer Simulation Technology (CST) Microwave Studio. The validation of results with the industry standard DASY4 robot SAR measurement system is made possible with the use of homogenous phantom model. The 1 g, 10 g and point SAR are enhanced by 28.33 %, 36.75 % and 9.55 % respectively due to the antenna crumpling deformation. The short length ripple investigated in this paper shows the highest relative SAR increment.

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Illahi, U., J. Iqbal, M. I. Sulaiman, M. Alam, M. S. Mazliham, and M. H. Jamaluddin. "Circularly polarized rectangular dielectric resonator antenna excited by an off-set conformal metal strip." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 2 (2019): 902. http://dx.doi.org/10.11591/ijeecs.v15.i2.pp902-909.

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A rectangular dielectric resonator antenna (DRA) has been excited by an off-set single conformal metal strip. By using such excitation technique two degenerate resonant modes, TExδ11 and TEy1δ1 of the rectangular DRA have been excited to achieve circular polarization (CP). A CP bandwidth of ~ 5.2% in conjunction with a wide impedance matching bandwidth of ~ 54% has been provided by the proposed DRA configuration. The antenna design has been simulated using computer simulation technology (CST). Antenna prototype has been built to verify the impedance matching bandwidth. Far field parameters have been optimized and verified using two simulation techniques in CST i.e. finite integration technique (FIT) and finite element method (FEM). A good agreement between the simulated and measured result has been observed for S11. Similarly a very good resemblance between the far field results from FIT and FEM have been demonstrated.

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42

Hamd, Huda Ibrahim, Israa Hazem Ali, and Ahmed Mohammed Ahmed. "Design and simulation double Ku-band Vivaldi antenna." Indonesian Journal of Electrical Engineering and Computer Science 25, no. 1 (2022): 396. http://dx.doi.org/10.11591/ijeecs.v25.i1.pp396-403.

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Abstract:

Due to the tremendous development in the field of wireless communication and its use in several fields, whether military or commercial was proposed. A novel tapered slot Vivaldi antenna is designed and simulated at double band frequency (Ku-band) using computer simulation technology (CST) software 2020. The dimensions of the antenna are 2.3 × 1 × 0.4 mm3 with a microstrip feed of 0.5 mm. The proposed antenna is improved by cutting a number of circle shapes on the patch layer in different positions. The simulation results are divided into more sections according to the number of circle shapes cutting. The results are good acceptance and make the improved Vivaldi antenna valuable in many future wireless communication applications.

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43

Shareef, Oras Ahmed, Ahmed Mohammed Ahmed Sabaawi, Karrar Shakir Muttair, Mahmood Farhan Mosleh, and Mohammad Bashir Almashhdany. "Design of multi-band millimeter wave antenna for 5G smartphones." Indonesian Journal of Electrical Engineering and Computer Science 25, no. 1 (2022): 382. http://dx.doi.org/10.11591/ijeecs.v25.i1.pp382-387.

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The design of a millimeter wave (mmW) antenna for the 5G mobile applications is presented in this paper. The designed antenna has dimensions of 10×10×0.245 mm3. This includes the copper ground plane. The resonance of the proposed mmW antenna lies within the range of 33 GHz and 43 GHz. These frequency bands are covering the 5G proposed band in terms of the signal speed, data transmission, and high spectral efficiencies. Computer simulation technology (CST) software is used to simulate the proposed 5G antenna including the characteristics of S-parameters, gain, and radiation pattern. Simulation results show that the return loss at resonant frequencies goes -22 dB, which satisfies the requirements of 5G mobile technology.

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44

Othman, Nur Nasyilla, Wan Noor Najwa Wan Marzudi, Nur Faizah Mohamad Yusof, Zuhairiah Zainal Abidin, Siti Zarina Mohamad Muji, and Yue Ma. "MIMO Antenna Performances on Microstrip Antenna with EBG Structure for WLAN Applications." Applied Mechanics and Materials 773-774 (July 2015): 756–60. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.756.

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A dual microstrip MIMO antenna with Electromagnetic Bandgap (EBG) structures presented. EBG structures proposed in order to reduce the coupling between elements .Simulated scattering parameters with and without EBG structures compared. An evaluation of MIMO antenna characteristics is presented, with the analysis of the mutual coupling, correlation coefficients, total active reflection coefficients (TARC), capacity loss and channel capacity using Computer Simulation Technology (CST) Microwave Studio Software. The proposed antenna is a good candidate for WLAN practical applications.

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Goyal, Prachi, P. K. Singhal, Pooja Sahoo, and Deep K. Parsediya. "Modified E-Shape Rectangular Microstrip Patch Antenna with DGS for Wireless Communication." International Journal of Electrical and Electronics Research 11, no. 3 (2023): 814–18. http://dx.doi.org/10.37391/ijeer.110327.

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A modified E-shape dual bands rectangular microstrip patch antenna for wireless applications is presented in this paper. An E-slot Microstrip patch antenna with a defective ground structure method has been proposed and getting two bands at 1.9 GHz and 2.89 GHz with S11 -10dB. Defective ground structures provide a maximum gain and low insertion loss i.e., a gain of 3.16 dB, voltage standing wave ratio less than 2, and insertion loss less than -10 dB for both bands. The size of the antenna is 46.83mm x 38.41mm x 1.676mm, which is compact in term of size. The dual band microstrip patch antenna exhibits low cost. The simulation's outcome closely resembles the actual printed antenna and applicable for WiMAX application. The antenna was designed using the Computer Simulation Technology (CST) software and printed on FR-4 substrate.

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Zheng Tung, Lau, Ghafour Amouzed Mahdiraji, and Lee Chia Ping. "Comparative Study between Planar and Bent Antenna Characterization." MATEC Web of Conferences 152 (2018): 03002. http://dx.doi.org/10.1051/matecconf/201815203002.

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Smaller designs of antenna usually implemented on Wi-Fi modules or navigation system devices which requires smaller bandwidth such as Planar Antenna. There are some antenna application requires bent antenna such as wearable UWB antenna but the substrate used will have some defects after bending and crumpling from time to time. What if the planar antenna is designed that it can be bent and the bending affects the impedance matching and shift in resonant frequency? So, this research aims to achieve the limitation of the planar antenna to be bent at certain angle and given frequency range (1-8 GHz). The planar antenna is designed in the Computer Simulation Technology (CST) Software and the proposed antenna is then bend in the simulation software. The analysis of comparative evaluation for both planar and bent antenna is carried out on different characteristics such as evaluation between S-Parameters & Frequency and evaluation between Voltage Standing Wavelength Ratio (VSWR) & Frequency. The behaviour of radiation pattern for both antennas can also be obtained in the CST simulation.

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47

Abdul Malek, Norun, Athirah Mohd Ramly, Atiah Sidek, and Sarah Yasmin Mohamad. "Characterization of Acrylonitrile Butadiene Styrene for 3D Printed Patch Antenna." Indonesian Journal of Electrical Engineering and Computer Science 6, no. 1 (2017): 116. http://dx.doi.org/10.11591/ijeecs.v6.i1.pp116-123.

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3D printing is one of the additive manufacturing technology that has gain popularity for time saving and complex design. This technology increases a degree of flexibility for potential 3D RF applications such as wearable and conformal antennas. This paper demonstrates a circular patch antenna fabricated on 3D printed Acrylonitrile Butadiene Styrene (ABS) filament. The main reason of using a 3D printer is that it is accurate, easy to fabricate of a complex geometry and the ability to create new antennas that cannot be made using conventional fabrication techniques. The ABS material has a tangent loss of 0.0051 and the relative permittivity is 2.74. The thickness of the substrate is 1.25 mm. The simulation has been performed using Computer Simulation Technology (CST). The return loss from simulation software is in good match with measurement which is 12.5dB at 2.44GHz. Hence, from the results obtained, the ABS could be used as a substrate for an antenna.

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Farhad, E. Mahmood, and Wasmi Osman Luhaib Saad. "Semi-circular compact CPW-fed antenna for ultra-wideband applications." TELKOMNIKA (Telecommunication, Computing, Electronics and Control) 20, no. 6 (2022): 1200–1205. https://doi.org/10.12928/telkomnika.v20i6.24229.

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This paper presents a simple structure and small size antenna design with dimensions of 43×47 mm2 to perform an ultra-wideband (UWB) frequency range using a semicircular co-planar waveguide (CPW). This antenna has been designed and simulated by the computer simulation technology (CST) microwave studio suit. In this work, we design an ultra-wideband antenna (about 2 GHz to 10 GHz) by feeding a semi-circular compact antenna via a co-planar waveguide for input impedance of 50 Ω. The CST simulation results show that our designed antenna has a very good impedance and radiation characteristic within the intended ultra-wideband. Because of the small size and the suitable shape, this antenna can be used in many wireless communication applications, such as a radio frequency identifier (RFID), indoor wireless local area network or wireless fidelity (WiFi), internet of things (IoT), millimeter waves communications (mmWave), global positioning system (GPS), and many applications of 6G systems.

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Huang, Jing, Youngin Yoo, Seung-Joo Jo, et al. "Analysis of the Characteristics of Mesh with Complex Knitting Patterns for Spaceborne Reflector Antennas." Journal of Electromagnetic Engineering and Science 24, no. 6 (2024): 565–73. https://doi.org/10.26866/jees.2024.6.r.262.

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Metallic mesh with complex woven structures is commonly used as the surface in large aperture spaceborne reflector antennas. To study the electrical properties of mesh surfaces characterized by intricate patterns, this paper presents a method for building models to analyze complex meshes. High Frequency Structure Simulator and Computer Simulation Technology (CST) simulation of the reflection coefficients, with Astrakhan’s formulation as a reference, confirm that applying the wire-grid model in CST using the tetrahedral mesh type provides sufficiently accurate results. Furthermore, the rectangular periodic wire-grid model is simulated in CST, and its results are compared with those of Astrakhan’s formulation. Correlations between reflection characteristics and influence factors, including mesh opening size, wire diameter, nature of wire contact, and wave incident angle, are investigated. To exemplify the applicability of the wire-grid model to complex mesh with irregular pattern shapes, the reflection coefficients of a warp-knitted gold-coated molybdenum mesh woven by multi-wires are measured and compared to the simulated results from the wire-grid model. The results prove that the method proposed in this paper is suitable for modeling metal mesh with complex weave patterns.

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N. Adel, Randa, and Ali H. Khidhir. "Design of Inverted F-Shape Antenna at 2.35 GHz for S-Band Applications." Al-Nahrain Journal of Science 25, no. 4 (2022): 38–42. http://dx.doi.org/10.22401/anjs.25.4.06.

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In this work, a simulation model of planar inverted F antenna (PIFA) will be presented with the radiating plate that has been connected to ground plane that has been accompanied by shortening plate and the FR4 substrate between ground plane and radiating plate. Where PIFA was built using computer simulation technology (CST) for the studio microwave (2019 release). The simulation model has been studied for return loss (S-parameter), bandwidth (BW), voltage standing wave ratio (VSWR), and input impedance (Zin) which are −21.875406dB, 301MHz, 1.1752855, and 50, respectively. The simulation results showed that the PIFA component covers a wide frequency band ranging between 2.202 and 2.504GHz, which can be used in Bluetooth, Wi-Fi, and Long Term Evolution (LTE) applications that are used in the fourth generation cellulares communications.

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Journal articles on the topic 'And Computer simulation technology (CST)'

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