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Journal articles on the topic 'ANSYS HFSS Simulation'

Author: Grafiati

Published: 7 June 2025

Last updated: 17 July 2025

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D, MONISHA. "DESIGNING G-SHAPED MICROSTRIP PATCH ANTENNA FOR 5G APPLICATION." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem30034.

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This paper presents the design and simulation of a G-shaped microstrip antenna operating at 3.7 GHz for 5G applications using ANSYS HFSS software. The antenna is fabricated on a substrate with dimensions 30x60 mm2. The G-shaped geometry is chosen for its compact size and improved bandwidth characteristics. The design process involves parameter optimization to achieve the desired resonant frequency and impedance matching. ANSYS HFSS simulations are utilized to analyze the antenna's performance in terms of return loss, radiation pattern, 3D polar plot and efficiency. The proposed antenna demonstrates promising characteristics suitable for 5G communication systems, offering wide bandwidth and efficient radiation properties with specific application in the S band frequency range. Key Words: G-shaped patch antenna, 3D polar plot, 5G, S band, ANSYS HFSS design.

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Kuznetsov, I. A., A. N. Gribanov, A. A. Kurushin, G. F. Moseychuk, and A. I. Sinani. "Electrodynamic computations using ANSYS Electronics Desktop software controlled by a program developed in the MATLAB environment." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 3 (September 30, 2019): 13–18. http://dx.doi.org/10.38013/2542-0542-2019-3-13-18.

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The paper considers methods of controlling the process of electrodynamic structure simulation in the ANSYS Electronics Desktop software (previously known as ANSYS HFSS). The MATLAB software was leading the computation. In order to transmit data to the ANSYS Electronics Desktop software we employed the Microsoft Component Object Model technology, which makes it possible to combine software components into executables. We used simulation of a planar aperture phased antenna array to show the possibilities and limitations in controlling the ANSYS HFSS software subsequently outputting data to a text file and importing the latter into MATLAB for further computation. We present simulation results for a phased antenna array generated by the ANSYS Electronics Desktop software according to the array model compiled in MATLAB

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Kerwien, Christopher M., and Charlotte Blair. "Shielding Effectiveness Simulation of SMT EMI Gaskets Utilizing ANSYS HFSS." International Symposium on Microelectronics 2017, no. 1 (2017): 000109–12. http://dx.doi.org/10.4071/isom-2017-tp43_081.

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Abstract As more components populate smaller board areas, the risk of unwanted coupling between components increases. Shielding and radiated emissions tests outlined by IEEE standards such as IEC 61000-4-21 and ASTM4935D identify measurement techniques to quantify shielding effectiveness. In a PCB topology, shields enclose components to create a Faraday cage, but necessitate a method to ground and fasten the shield to the PCB. Typical methods include the use of gaskets, sealants and clips. This paper reviews a gasket methodology and validates a parameterized ANSYS HFSS simulation with the measured relationship between gasket configuration and shielding effectiveness. Surface mount, rectangular, compressible gaskets manufactured by W.L. Gore & Associates, Inc. are used in several configurations to shield a PCB radiator. Radiated emissions measurements are performed in an ETS-Lindgren reverberation chamber to evaluate shielding effectiveness for each configuration. ANSYS HFSS, a full wave Finite Element Method (FEM) electromagnetic simulation solver, is used to simulate each geometric configuration and is verified with measured results.

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Hung, Phan Van, Nguyen Quoc Dinh, Yoshihide Yamada, Naobumi Michishita, and Mohammad Tariqul Islam. "Parametric Analysis of Negative and Positive Refractive Index Lens Antenna by ANSYS HFSS." International Journal of Antennas and Propagation 2020 (November 24, 2020): 1–11. http://dx.doi.org/10.1155/2020/9128921.

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Lens antennas with multibeam, high gain, and low sidelobe level are potential candidates for base station antennas in 5G mobile communication. In this paper, the authors perform simulation and parametric analysis of a lens antenna with positive and negative refractive indexes (NRI) using the modern electromagnetic field simulation software ANSYS HFSS. The simulation results of structures and theoretical calculations are analyzed and compared. The simulation results show the effectiveness of using negative refractive index lens antennas to minimize the dimension. The lens thickness with a negative refractive index decreased from 24.5 mm to 6.1 mm compared to the positive refractive index lens’s thickness. The results also indicate the similarities in gain, sidelobe level, amplitude, and electric field distribution on the aperture plane of the negative and positive refractive indexes (PRI) lens antennas compared to the theoretical calculation. In addition, the authors simulate a lens structure with additional quarter wavelength matching layers (MLs) to estimate the antireflection performance.

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Suneel Kumar, A., R. Lakshmi Swarna Prasanna, V. Nandini, T. Dharma Teja, and S. Sai. "A Low-Cost and Dual band Microstrip Patch Antenna for Ku and K Band Applications." Electrical and Automation Engineering 2, no. 1 (2023): 37–44. http://dx.doi.org/10.46632/eae/2/1/6.

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This paper examines a dual-band, low-cost microstrip patch antenna for Ku and K applications through simulation study. Ansys High Frequency Structure Simulator (HFSS) software is used to do the simulation analysis of the suggested antenna. Using Ansys High Frequency Structure Simulator (HFSS) software, the suggested antenna is constructed and simulated to evaluate several characteristics including reflection coefficient (S11), radiation pattern, gain, and bandwidth. The substrate for the antenna is made of FR-4, which has a relative permittivity of 4.4 and a dielectric loss tangent of 0.02. Using the microstrip feed line technology, the planned millimeter wave dual band antenna is examined at operating frequencies of 13 and 22 GHz. At frequencies of 13 and 22, respectively, the antenna's maximum gain values are 4.81 dB and 4.82 dB in the x-y plane. The suggested material might be a decent substitute.

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Guneser, Muhammet Tahir, Cihat Seker, Mehmet Izzeddin Guler, Norma Latif Fitriyani, and Muhammad Syafrudin. "Efficient 5.8 GHz Microstrip Antennas for Intelligent Transportation Systems: Design, Fabrication, and Performance Analysis." Mathematics 12, no. 8 (2024): 1202. http://dx.doi.org/10.3390/math12081202.

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In this study, we designed a high-performance, compact E-shaped microstrip antenna optimized for intelligent transportation systems, operating at 5.8 GHz. Utilizing simulation tools such as CST Studio Suite 2022 Learning Edition, Ansys HFSS 2022 R1, and MATLAB 2022b PCB Antenna Designer, we ensured consistent physical parameters. Fabricated with a 1.6 mm thick FR-4 substrate and a 50 Ω microstrip line-feeding technique, the antenna measures 35 × 50 × 1.6 mm³, smaller than already existing designs. At 5.75 GHz, it exhibits a return loss of −23.68 dB and a VSWR of 1.140 dB, ensuring stable performance within the desired frequency band. Our findings recommend its integration into vehicle-to-infrastructure wireless communication systems. Comparison across simulation environments and laboratory measurements highlights the close alignment of results with those from Ansys HFSS 2022 R1, affirming its reliability.

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Terentyev, M. A., S. I. Pokhvalov, and M. M. Nabiulin. "Dual-channel linear emitter based on a semi-open groove waveguide." Journal of «Almaz – Antey» Air and Defence Corporation, no. 2 (July 19, 2020): 45–54. http://dx.doi.org/10.38013/2542-0542-2020-2-45-54.

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This paper describes the design of a dual-channel semi-open groove waveguide and a methodology for designing such structures. A method for forming a negative phase shift by shortening the lengths of the radiating inhomogeneities is demonstrated. Simulation experiments were performed using the Ansys HFSS package.

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International, Journal for Research In Science &. Advanced Technologies. "DESIGN OF HIGH GAIN ULTRA-WIDE BAND MULTI-INPUT MULTI-OUTPUT(MIMO) ANTENNA." International Journal for Research In Science & Advanced Technologies 25, no. 05 (2025): 24–32. https://doi.org/10.5281/zenodo.15574382.

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This project centers around the design and simulation of a high-gain ultrawideband (UWB) multiple-input multiple- output (MIMO) antenna using Ansys HFSS. The Proposed antenna operates within the UWB frequency range of 3.1 GHZ to 10.6 GHZ, boasting a compact design, high gain, and minimal coupling between its components. The design process in HFSS entails fine-tuning essential factors such as element spacing, feed configuration, and substrate selection to attain a broad impedance bandwidth, high diversity gain, and stable radiation patterns. In Ansys HFSS simulation, the use of full-wave 3d electromagnetic modelling guarantees accurate evaluation of both near-field and far-field parameters. The antenna's performance is assessed based on gain, directivity, VSWR, and return loss. The stability of the radiation pattern across the UWB spectrum guarantees consistent omnidirectional or directional performance, which is crucial for mobile and dynamic communication environments. The findings confirm the effectiveness of the proposed antenna for high-speed data communication systems, such as 5g, IOT, and UWB radar applications. Its compact size, high efficiency, and consistent radiation patterns make it a suitable choice for portable and space-limited devices. The HFSS based approach guarantees precise performance estimation, enabling the creation of cutting- edge UWB MIMO antennas for future communication systems. This thorough approach positions the proposed UWB MIMO antenna as a promising candidate for implementation in emerging technologies like autonomous vehicles, smart healthcare, industrial IOT, and beyond-5g systems.

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Ramineni, Padmasree. "Design and Analysis of a Dual-Band Microstrip Patch Antenna for Sub-6 GHz Applications." Journal of Engineering Research and Reports 26, no. 7 (2024): 210–21. http://dx.doi.org/10.9734/jerr/2024/v26i71204.

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This paper explores the design, simulation, and analysis of a dual-band Microstrip patch antenna designed to operate efficiently at frequency ranges of 3.32 GHz - 3.62 GHz and 4.72 GHz - 6.83 GHz, utilizing Ansys High-Frequency Structure Simulator (HFSS) software. The primary objective is to enhance performance metrics such as bandwidth, gain, and radiation efficiency to meet the requirements of applications necessitating concurrent operation at both frequency bands. The study involves a comprehensive design, iterative simulation, and detailed analysis using Ansys HFSS, with customized design considerations aimed at optimizing performance for modern wireless communication systems. The research was conducted in a simulated environment over a period that included iterative design processes, multiple simulation runs, and thorough analysis phases. Methodologically, the study focused on iterative design refinement to improve key performance parameters such as reflection coefficient, gain, radiation efficiency, Voltage Standing Wave Ratio (VSWR), and relative permittivity at the specified frequency bands. Results indicate that at 3.32 GHz - 3.62 GHz, the antenna achieves a reflection coefficient of -5 dB, a gain of 2.77 dB, a radiation efficiency of 0.7429, and a VSWR of 1.9299. At the higher frequency range of 4.72 GHz - 6.83 GHz, the antenna exhibits a reflection coefficient of -20.5213 dB, a gain of 3.34 dB, a radiation efficiency of 0.7, and a VSWR of 1.2203. These findings underscore the antenna's capability to deliver improved performance metrics across both frequency bands. In conclusion, the dual-band Microstrip patch antenna designed and analyzed through Ansys HFSS demonstrates significant potential for use in contemporary wireless communication systems, offering enhanced bandwidth, gain, and radiation efficiency suitable for multi-frequency applications.

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Dukanac, Đorđe. "Influences of Reflections and Diffractions of Waves and the Modelled Source and UHF Sensors When Locating Partial Discharges in a Power Transformer." Energija, ekonomija, ekologija XXVI, no. 3 (2024): 11–20. https://doi.org/10.46793/eee24-3.11d.

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In this paper, the propagation of ultra-high frequency (UHF) electromagnetic (EM) waves and the determination of the location of partial discharges (PDs) in the power transformer were analysed in detail using six simulation models of the power transformer filled with mineral oil. Five models of varying complexity were tested in Ansys HFSS and one simplified model in MATLAB. Based on the results of their comparison, appropriate conclusions were drawn. Various factors were taken into account in the models in Ansys HFSS, including the number and type of transformer components present. These factors were 1) wave reflections from the steel tank, 2) wave reflections from and diffractions around the magnetic core, 3) wave reflections from and diffractions around and through the three-phase windings, and 4) mutual positions and orientations of the receiving antennas to the transmitting antenna. They affected: a) the distortions, values and delays of the first peaks, and b) the amplitudes of the first signal packets at the four UHF sensors placed differently, in relation to the imaginary model when the tank of the power transformer is transparent. Dipole antennas were used for the PD source and UHF sensors. In the MATLAB model, the source is a point, while the sensors are represented by their phase centres. Using the model in MATLAB, the influence of imperfect mutual positions and spatially non-symmetrical total gain diagrams of the transmitting antenna and receiving antennas in the models in Ansys HFSS, in terms of additional attenuation of the received signals at the sensors, was evaluated. The dimensions of the tank and the position of the PD source and UHF sensors in the models in Ansys HFSS were the same as those in the MATLAB model

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N., Sivasankari, Abirami K., and Lakshmi Prabha G. "Study and Analysis of “W- Shaped” Meander Line Antenna." Journal of Ubiquitous Computing and Communication Technologies 7, no. 2 (2025): 98–109. https://doi.org/10.36548/jucct.2025.2.001.

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This report details the design and analysis of a W-shaped meander line antenna utilizing ANSYS HFSS (High-Frequency Structure Simulator). The antenna is distinguished by its compact design, wide bandwidth, and efficient performance for wireless communication applications. Simulation results, including gain, return loss, efficiency, and directivity, confirm the effectiveness of the W-shaped structure in achieving the desired frequency response. The W-shaped antenna employs a meander line pattern resembling the letter 'W,' which contributes to a reduction in the antenna’s physical size while maintaining the necessary electrical properties. The simulation of this antenna was conducted in ANSYS HFSS v2021. Key results obtained include return loss, radiation pattern, 3D polar plot, sidelobe level, beamwidth, radiated power, and accepted power. This meander line W-shaped antenna is designed for a frequency of 5.2 GHz, demonstrating a return loss of less than -10 dB and a bandwidth of 2 GHz. The antenna achieves a gain of 10 dB at perpendicular angles. A significant advantage of this antenna is its capability to provide a wider bandwidth and a radiation efficiency of 98%.

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Andrade-Gonzalez, Edgar Alejandro, Mario Reyes-Ayala, José Ignacio Vega Luna, Hilario Terres-Peña, René Rodríguez Rivera, and Sandra Chávez Sánchez. "Fractal Monopole Antenna based on Tree Fractal for Future Bands 5G." WSEAS TRANSACTIONS ON COMMUNICATIONS 24 (March 18, 2025): 1–6. https://doi.org/10.37394/23204.2025.24.1.

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This article shows the design and simulation of a broadband antenna based on a circular microstrip monopole using a Duroid substrate with a dielectric permittivity of 2.2 and a thickness of 1.27 mm. The simulations of this article were carried out using Ansys High Frequency Structure Simulator (HFSS). The antenna geometry presents replicas of the monopole following the tree fractal distribution. The S11 scattering, current distribution, and the radiation pattern were carried out. The antenna presented shows bandwidth for the new 5G FR2 band operation.

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Zamaraite, Ilona, Saulius Rudys, Saulius Lapinskas, Rimvydas Aleksiejunas, Robertas Grigalaitis, and Juras Banys. "Computational electromagnetic analysis of partially-filled rectangular waveguide at X-band frequencies." Nonlinear Analysis: Modelling and Control 27, no. 6 (2022): 1150–67. http://dx.doi.org/10.15388/namc.2022.27.29533.

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In this paper, the full-wave analysis of the direct scattering problem in the rectangular waveguide is derived. The numerical calculation results of the scattering characteristics are presented. To show the advantage of our proposed model, we compared direct problem results with three-dimensional simulation software Ansys HFSS calculations. An excellent agreement is observed when compared these two approaches.

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Zhao, Tuan, Hongzhi Yao, Xiangfei Ji, and Jiao Li. "Simulation Analysis on Shielding Effectiveness of Rocket Projectile." Journal of Physics: Conference Series 2478, no. 3 (2023): 032025. http://dx.doi.org/10.1088/1742-6596/2478/3/032025.

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Abstract In order to analyze the shielding effectiveness of the rocket projectile in the electromagnetic environment, the electromagnetic simulation model of the rocket motor was established by using the ANSYS HFSS electromagnetic simulation software, the shielding effectiveness of the rocket projectile motor was calculated, and the influence of the structural charactetristic parameters of the rocket projectile motor on the shielding effectiveness was analyzed, the distribution law of shielding effectiveness with frequency parameters and position parameters were obtained, which provided support for evaluating the electromagnetic environment safety of rockets projectile.

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Zhang, Ruo Fan, Ke Zhang, Ren Cheng Wang, Jia Cheng, and Yi Jia Lu. "Development and Application of Electromagnetic Module in Multi-Fields Automatic Simulation Platform for Integrated Circuit Devices." Applied Mechanics and Materials 722 (December 2014): 194–97. http://dx.doi.org/10.4028/www.scientific.net/amm.722.194.

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According to integrated circuit (IC) devices, this study proposed a integrated automatic design platform including geometric modeling, finite element simulation analysis, experimental design etc. The platform is a software system, the development of which is driven by product design of IC device chambers. As a module of the platform, the electromagnetic fields simulation part is based on secondary development of Ansys HFSS and the Python language to transfer data, build model and analyze automatically. The validity of the electromagnetic simulation module is verified by an example of PECVD SC300 chamber.

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(Alvin), Pin Jen Wang, Sharmin Islam, Fred Barlow, and Aicha Elshabini. "Simulation and Measurement of Power Distribution Networks (PDN)." International Symposium on Microelectronics 2016, no. 1 (2016): 000368–78. http://dx.doi.org/10.4071/isom-2016-wp54.

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Abstract In this publication, signal integrity issues of Power Distribution Networks (PDNs) are addressed (to insure acceptable quality of signals within); Transmission line effects, Crosstalk, and Impedance mismatch. Power Integrity issues of PDNs are also addressed (to insure acceptable quality of power delivery within); Voltage drop, High impedance, Parasitic Via inductances, and Noise coupling. In this work, ANSYS™ HFSS 2013 FEM simulation techniques development, adaptive meshing, and convergence to S-parameters, Differential S-parameters, and Z-parameters to design and simulate PDNs under different conditions and the results are compared to measurements performed in our laboratories.

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Andreica, Sergiu, Calin Munteanu, Claudia Constantinescu, et al. "Design and Simulation of Three-Band Microstrip Resonator Bandpass Filters for Wireless Communication Systems." IOP Conference Series: Materials Science and Engineering 1320, no. 1 (2024): 012006. http://dx.doi.org/10.1088/1757-899x/1320/1/012006.

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Abstract This research focuses on the design, simulation, and practical implementation of three-band microstrip resonator bandpass filters for wireless communication systems. Key parameters targeted in optimizing these filters include coupling coefficient, external quality factor, and fractional bandwidth, among others. Using ANSYS HFSS software, the electromagnetic behavior of the filters was analyzed to enhance their design. The proposed filters were fabricated on RT/Duroid 5880 substrate and experimentally validated using a vector network analyzer. Experimental results were compared with simulations, demonstrating satisfactory performance at specific frequencies relevant to Wi-Fi, 5G, and radar applications. Additionally, a comparative study with other similar filters from the literature was conducted to evaluate their performance.

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Kim, Jaekyung, and Euysik Jeon. "Electromagnetic Field Simulation in a Microwave Chamber with Multiple Waveguides." MATEC Web of Conferences 167 (2018): 03001. http://dx.doi.org/10.1051/matecconf/201816703001.

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While microwaves have many features and advantages, problems may occur, including non-heating, partial overheating, and fire due to damaged magnetrons caused by reflected waves, when they are used without a proper understanding of the permittivity of the object to be heated, the electromagnetic field distribution, the matching between the chamber and the waveguide, and the reflected electromagnetic waves. Simulation was performed using the Ansys HFSS tool. Conditions for the uniform electromagnetic field were derived using the distance from the waveguides to the ceramic material as well as the microwave energy intensity as major parameters.

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Narasimhan, Sivasankari. "Metamaterial-Inspired Electrically Compact Triangular Antennas Loaded with CSRR." International Scientific Journal of Engineering and Management 03, no. 05 (2024): 1–9. http://dx.doi.org/10.55041/isjem01755.

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In this paper, simulation of two distinct kinds of metamaterial (MTM) antennas are proposed for fifth generation (5G) indoor distributed antenna systems (IDAS). Both antennas operate in the sub-6 GHz 5G band, i.e., 3.5 GHz and to analyze various factors like gain, directivity, return loss, radiation intensity for the frequency of 3.5 GHz. The simulation of this metamaterial antenna is carried out in ANSYS HFSS v2021. Results like return loss, radiation pattern, 3D polar plot, side lobe level, beamwidth, radiated power, accepted power have been obtained using HFSS v2021. This research on metamaterial gives a great view on how it can be designed and used at 3.5GHz frequency has a measured gain/bandwidth characteristic of 100 MHz/2.6 dBi and 700 MHz/2.3 dBi, respectively. The main advantage of this antenna is it can be used as both transmitting and receiving antenna. Key Words: Metamaterial, CSRR, return loss, triangular CSRR

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Haerinia, Mohammad, and Sima Noghanian. "A Printed Wearable Dual-Band Antenna for Wireless Power Transfer." Sensors 19, no. 7 (2019): 1732. http://dx.doi.org/10.3390/s19071732.

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In this work, a dual-band printed planar antenna, operating at two ultra-high frequency bands (2.5 GHz/4.5 GHz), is proposed for wireless power transfer for wearable applications. The receiving antenna is printed on a Kapton polyimide-based flexible substrate, and the transmitting antenna is on FR-4 substrate. The receiver antenna occupies 2.1 cm 2 area. Antennas were simulated using ANSYS HFSS software and the simulation results are compared with the measurement results.

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MOHAMMAD SHAHED PERVEZ and AMANPREET KAUR. "Conformal dual band mm wave antenna design for vehicular 5G/6G integration." World Journal of Advanced Research and Reviews 26, no. 2 (2025): 917–25. https://doi.org/10.30574/wjarr.2025.26.2.1781.

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The integration of 5G and upcoming 6G communication systems into intelligent vehicles necessitates compact, high-performance antennas with enhanced beamforming capabilities. This paper presents the design, simulation, and performance evaluation of a conformal mmWave antenna for vehicular applications. Operating in both 28 GHz and 38 GHz bands, the proposed antenna features a flexible substrate for seamless integration on curved vehicle surfaces. Electromagnetic simulations in Ansys HFSS confirm high gain, low mutual coupling, and wideband performance, making it suitable for V2X (vehicle-to-everything) systems. The design demonstrates robust beam steering up to ±45° and gain exceeding 10 dBi. Additionally, we explore bending impact, array performance, and real-time integration scenarios.

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Hossain, Mohammad Jakir, Md. Jakirul Islam, Momotaz Begum, et al. "Inverse C-shaped Complementary Split-ring Resonator-based NRI Meta-atom for Wireless Applications." Journal of Advanced Research in Applied Sciences and Engineering Technology 64, no. 4 (2025): 158–72. https://doi.org/10.37934/araset.64.4.158172.

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This study investigates a meta-atom exhibiting a broad Negative Refractive Index (NRI). The meta-atom is constructed using a complementary circular-square split-ring resonator shaped in an inverse C design. The electromagnetic properties of the structure were analyzed through simulations using CST Microwave Studio, Ansys HFSS 3D software, and ADS. The meta-atom demonstrates three distinct resonant frequencies at 2.71 GHz, 4.19 GHz, and 5.60 GHz, spanning both the S- and C-bands. Its optimal Effective Medium Ratio (EMR) is 12.30, and the unit cell measures 9 mm × 9 mm with a substrate thickness of 0.508 mm. This design is notable for its compact dimensions, strong NRI performance, high EMR, and well-defined resonance points. The S-band, commonly used for radar, and the C-band, which supports high-speed Wi-Fi networks, are both covered by this structure. The paper outlines the design methodology and various parameter optimization processes. Simulation results from Ansys HFSS align well with those from CST and ADS. Additionally, the study includes an analysis of surface current distributions, as well as the electric (E-field) and magnetic (H-field) field patterns. Compared to alternative designs discussed in the article, this proposed structure offers superior performance, showcasing a high EMR, extensive NRI range, and a compact form factor suitable for radar and Wi-Fi applications.

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Jales Duarte, Mychael, Adaildo Gomes D'Assunção Júnior, Valdemir Praxedes da Silva Neto, and Adaildo Gomes D'Assunção. "A New Ultraminiaturized Low-profile and Stable FSS with 2.5D Structure for 900 MHz ISM Band." Journal of Communication and Information Systems 38, no. 1 (2023): 9–13. http://dx.doi.org/10.14209/jcis.2023.2.

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This paper presents a new 2.5D ultraminiaturized frequency selective surface (FSS) structure to operate in the 900 MHz ISM band (902 to 928 MHz), for application in the Wi-Fi HaLow. The proposed FSS simulation and design are performed using ANSYS HFSS software and equivalent circuit model (ECM). The development of the proposed 2.5D FSS is based on meander-line-based conducting patches and has required the simulation and design of typical (2D) and 2.5D structures. An equivalent circuit model was proposed and presented very accurate results. For comparison purpose, a prototype is fabricated and measured. Agreement is observed between simulation and measurement results.

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Talanov, Vladimir V., Derek Knee, David Harms, et al. "Propagation of picosecond pulses on superconducting transmission line interconnects ^*." Superconductor Science and Technology 35, no. 5 (2022): 055011. http://dx.doi.org/10.1088/1361-6668/ac5783.

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Abstract Interconnects are a major discriminator for superconducting digital technology, enabling energy-efficient data transfer and high-bandwidth heterogeneous integration. We report a method to simulate propagation of picosecond pulses in superconducting passive transmission lines (PTLs). A frequency-domain propagator model obtained from the Ansys high-frequency structure simulator (HFSS) field solver is incorporated in a Cadence Spectre circuit model, so that the particular PTL geometry can be simulated in the time-domain. The Mattis Bardeen complex conductivity of the superconductor is encoded in the HFSS field solver as a complex-conductivity insulator. Experimental and simulation results show that Nb 20 Ω microstrip PTLs with 200 nm interlayer dielectric thickness can support propagation of a single-flux-quantum pulse up to 7 mm and a double-flux-quantum pulse up to 28 mm.

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Riboy, Cheriyan, Susa Varkey Sruthy, Cicy Saji Shilpa, Saji Sneha, and Ann Kurian Anuja. "Design and Simulation of a Microstrip Patch Antenna Array using ANSYS HFSS for Zigbee and WiMax Applications." Journal of Electronics and Communication Systems 4, no. 3 (2019): 15–20. https://doi.org/10.5281/zenodo.3525708.

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The design and simulation of a dual-band rectangular patch antenna array at 2.4 GHz and 3.5 GHz for Zigbee and Wimax applications are presented in this paper. The suggested antenna is expected to meet the wireless connectivity requirements in the architecture of a literature-inspired pre-hospital emergency system using IOT (Internet of Things) technology. In recent years, the rapid growth of IoT technology in the medical field has been observed. Introduced to support large-scale reconstruction of the global health system, this technology in many ways lead to changes in medical and population services provision. The simulations were performed with the help of ANSYS High Frequency Structure Simulator (HFSS). The radiating element and the feed line are constructed with the material PEC (Perfect Electric Conductor) of 0.035 mm thick. They are engraved on an Epoxy FR-4 substrate, with a relative permittivity ℇ𝒓= 4.4, thickness h = 1.6 mm, with the resonance frequency 𝒇𝒓 = 2.45 GHZ. Epoxy FR-4 is chosen as the substrate material because it is very affordable in terms of cost and has superior and outstanding mechanical properties, making it suitable for a wide range of applications on an electronic component. A micro strip patch antenna array can improve the gain in order to use our antenna in emission for the wimax band thus ensuring the transmission of data from the ambulance to the hospital. We have identified a gain improvement of 51.45% for the array antenna when compared to the normal micro strip patch antenna.

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Ndip, Ivan, Thi Huyen Le, Martin Schneider-Ramelow, and Klaus-Dieter Lang. "Quasi-Half Loop Bond Wire Antennas for Emerging Wireless Communication and Radar Sensor Systems." International Symposium on Microelectronics 2019, no. 1 (2019): 000235–37. http://dx.doi.org/10.4071/2380-4505-2019.1.000235.

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Abstract Emerging wireless communication and radar sensing systems require large channel bandwidths to meet the requirements of some key applications. Antennas used for the development of these systems must be designed to enable these large bandwidths. In this work, we present the characteristics of a quasi-half loop bond wire antenna (QHL-BWA) which enable large bandwidths and high gains at mmWave frequencies. The antenna was modelled and simulated using Ansys HFSS. Test samples were designed and measured. Very good correlation was obtained between measurement and simulation results.

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Subrahmanyam K, Bhanu Sri Mounika K, Keerthana M, Rama Rao G, Prathusha A, and Ramprasad Ravula. "Design of Wideband Backed Cavity Volumetric Dumbbell-Shaped Slot Antenna Using SIW Technology." International Journal of Scientific Research in Science, Engineering and Technology 12, no. 2 (2025): 585–93. https://doi.org/10.32628/ijsrset25122180.

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The growing demand for high-performance wireless communication has necessitated advanced antenna designs with improved bandwidth and efficiency. This study presents a novel dumbbell-shaped slot antenna based on Substrate Integrated Waveguide (SIW) technology. The antenna is engineered to provide extended bandwidth and enhanced radiation characteristics, optimized using ANSYS HFSS simulation software. The results indicate a wideband operation spanning 14.95 GHz to 16.50 GHz, achieving a 1.55 GHz bandwidth and a maximum gain of 5.4 dB at 16.50 GHz. These characteristics make the design a strong candidate for next-generation wireless communication applications.

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Jeyanth M, Karthickeyan N, and Balaji R. "Miniaturized Antenna for IOT Application." international journal of engineering technology and management sciences 6, no. 6 (2022): 478–83. http://dx.doi.org/10.46647/ijetms.2022.v06i06.082.

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Ansys platform-based HFSS simulator software is used to create a 4GHz circular micro strip patch antenna array. Applications including Bluetooth, the Internet of Things, and several WLANs can all benefit from it. The circular patch antenna, which is constructed on a FR4 substrate with a dielectric constant of 4.4 and a height of 1.6mm, is fed using edge feeding. The antenna is built using a 1.4mm thick FR-4 (lossy) substrate with a relative permittivity of 4.4 and a microstrip line feed. The chosen radius for the circular patch is 7.62mm. To lower the size and enhance the performance of the suggested antenna, a square slit 30mm by 30mm in size is etched onto the ground plane. The HFSS Simulation Program is employed in the antenna's design. Antenna characteristics such as return loss, radiation pattern, bandwidth, orientation, antenna gain and radiated efficiency are all studied.

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Mbotshwa, Cosygyn, Felix Mazunga, and Joseph Singadi. "Design, Fabrication and Testing of an Ultra-Wide Band Bowtie Antenna for Wireless Radar (UHF, L and S Band) Communication." International Journal of Advanced Networking and Applications 14, no. 01 (2022): 5261–65. http://dx.doi.org/10.35444/ijana.2022.14104.

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A low-cost and light-weight ultra-wideband bowtie antenna for radar applications was simulated, fabricated and tested. A concise and easy to follow step-by-step description of the performed bowtie antenna simulation in Ansys HFSS software is presented. Optimized antenna parameters were utilized to fabricate the antenna. Fabrication was achieved by utilizing an FR4 PCB. The prototype was tested using a spectrum analyzer. The fabricated bowtie antenna results were used to validate the simulation results. The results obtained from the simulation platform were in close agreement to those of the prototype antenna. Results on effect of substrate thickness and frequency on S11 are also presented. The prototype produced improved overall S11 as compared to the simulation. The results indicate that the fabricated antenna satisfies bandwidth requirements for the UHF, L and S bands.

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Bonilla Jara, Esthefanny, Dorian Caiza Vargas, and Maria Villacrés Meza. "Circular array antenna with a transmission line to form a Yagi-Uda antenna for Wi-Fi." Revista Perspectivas 4, no. 2 (2022): 19–24. http://dx.doi.org/10.47187/perspectivas.4.2.161.

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This paper describes the design of a Yagi-Uda stacked antenna array for 2.4 GHz applications. Its structure consists of 4 layers, layer 1 contains the active element, the reflector and the transmission line feed. Layers 2, 3 and 4 have circular patches that function as directors. The implementation of a "D" shaped patch on the active element is inserted, where the simulation results show that the proposed antenna can achieve a bandwidth that is much wider than the traditional circular patch antenna. Also the dimensions of the circular patch directors and their distances are chosen to have the highest directivity. The antenna simulation is performed in Ansoft Designer and Ansys HFSS 15.0 software.

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Ramalakshmi, Gudla, and P. Mallikarjuna Rao. "A Novel Metamaterial Inspired 2^nd Iteration Koch Fractal Antenna for Wi-Fi, WLAN, C band and X band Wireless Communications." Journal of Physics: Conference Series 2062, no. 1 (2021): 012004. http://dx.doi.org/10.1088/1742-6596/2062/1/012004.

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Abstract The rapid advancements in wireless technology desires compact, miniaturized, multiband and ultra wideband antennas. Fractal antennas have been proved as a source for fulfilling these demands. In this paper a 2nd order Koch fractal antenna of size 29.6 × 35.7mm2 designed on FR4-epoxy substrate material of dielectric constant (ɛr) 4.4 with a height of 1.6mm. This antenna is named as ANTENNA-1. To increase this antenna’s performance a meta material unit cell has been placed on the ground plane to serve multi band applications and is named as ANTENNA-2, which is the proposed antenna in this paper. The simulations have been carried out for both the antennas using ANSYS HFSS tool over the frequency sweep of (1-12GHz). The simulation results of proposed antenna producing 7 frequency bands which serves Wi-Fi, WLAN, C-band, and X band wireless communications. The simulation results like return loss, VSWR values have a good matching with the measured return loss, VSWR results of the fabricated antenna

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Panchenko, B. A., O. P. Ponomarev, and D. V. Denisov. "Quick calculation of Luneberg lens scattering signature." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 2 (June 30, 2017): 21–25. http://dx.doi.org/10.38013/2542-0542-2017-2-21-25.

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The paper focuses on solving the problem of diffraction of a linear polarization electromagnetic wave on multilayer bodies of a spherical shape, i.e. a metal sphere with a dielectric cover and Luneberg lens. For this purpose tensor Green function method was used. Within the research we described the electrodynamic system verifying the expressions obtained for the calculation of electromagnetic fields. Furthermore, we compared the obtained results of calculations with the results of simulation of a similar problem in the software package ANSYS HFSS . Finally, we estimated the computational burden and computing time for solving the problem in two ways

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Mekaladevi, Velusamy, Devi Nirmala, and Madasamy Jayakumar. "Design and analysis of dual dumbbell and rectangular slots SIW cavity-backed antenna at 2.45 GHz." Serbian Journal of Electrical Engineering 18, no. 2 (2021): 211–24. http://dx.doi.org/10.2298/sjee2102211v.

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The design and realization of a wideband substrate-integrated waveguide (SIW) cavity-backed slot antenna operating at 2.45 GHz for WLAN applications are presented. Dual dumbbell-shaped slots with rectangular slots are used to achieve increased bandwidth. The bandwidth observed is 160 MHz with the dumbbell-shaped slots. Further, it has been improved up to 9.2% by adding a rectangular slot. The wideband antenna is analyzed using ANSYS HFSS and fabricated on FR-4 substrate. The measured results of the proposed design are in good agreement with the simulation results and comparable with the reported results.

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Song, Yi-Chuan, Jun Ding, Chen-Jiang Guo, Yu-Hui Ren, and Jia-Kai Zhang. "Radar cross-section reduction based on an iterative fast Fourier transform optimized metasurface." Modern Physics Letters B 30, no. 18 (2016): 1650233. http://dx.doi.org/10.1142/s021798491650233x.

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A novel polarization insensitive metasurface with over 25 dB monostatic radar cross-section (RCS) reduction is introduced. The proposed metasurface is comprised of carefully arranged unit cells with spatially varied dimension, which enables approximate uniform diffusion of incoming electromagnetic (EM) energy and reduces the threat from bistatic radar system. An iterative fast Fourier transform (FFT) method for conventional antenna array pattern synthesis is innovatively applied to find the best unit cell geometry parameter arrangement. Finally, a metasurface sample is fabricated and tested to validate RCS reduction behavior predicted by full wave simulation software Ansys HFSS[Formula: see text] and marvelous agreement is observed.

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Touoyem Talla, J. A., B. Henriot, T. Duvaut, et al. "Design and numerical simulation of a 45 kW_el multi-source high-flux solar simulator as a heating source of dielectric materials positioned in a microwave characterization cavity." Journal of Physics: Conference Series 2766, no. 1 (2024): 012024. http://dx.doi.org/10.1088/1742-6596/2766/1/012024.

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Abstract This study reports the design and modelling of a high-flux solar simulator (HFSS) combined to a resonant cavity for microwave dielectric properties characterization of ceramics at very high temperatures. The HFSS comprises seven xenon arc lamps with ellipsoidal reflectors, delivering a maximal electrical power of 6.5 kWel each. Positioned on a virtual sphere of around 1600 mm radius, the lamps provide concentrated irradiation heating on a sample positioned inside the resonant cavity. The propagation of the lamp’s irradiation to the sample and the cavity is simulated using Monte Carlo ray tracing method. An ANSYS Fluent finite volume method for solving the resulting multimode heat transfer and flow indicate a radiative flux reaching 1.84 MW m−2, and a sample temperature of approximately 1470°C with 10 % non-uniformity. These results suggest that the designed heating system and resonant cavity is suitable for conducting microwave dielectric properties characterization of refracting ceramic materials at high temperatures, addressing a gap in studies focusing on temperatures exceeding 1000°C.

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Katke, Kiran, and S. K. Popalghat. "X-BAND Rectangular Microstrip Patch Antenna: Design, Simulation, and Analysis." International Journal for Research in Applied Science and Engineering Technology 12, no. 3 (2024): 1101–5. http://dx.doi.org/10.22214/ijraset.2024.59012.

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Abstract: Microstrip Patch Antennas (MPA) have shown to be the most unusual finding in the era of downsizing, despite the fact that the revolution in antenna engineering has led to the rapidly expanding communication networks. The design, modeling, and analysis of rectangular microstrip patch antennas are all included in this study. The suggested patch antennas' resonating frequency is 9 GHz, which falls inside the X band area. Ansys HFSS software was used to design them using Rogers RT/duroid 5880 material, which has a dielectric constant of 2.2. Five performance metrics were used to assess the suggested MPAs: return loss, bandwidth, VSWR, gain, and HPBW. The requested information pertains to the measurements of return loss, voltage standing wave ratio (VSWR), and half power beamwidth (HPBW). The suggested antennas are suitable for use in radar, wireless, and satellite applications.

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Shashank, G. Naga. "Multiband Microstrip Patch Antenna for 5G Applications using DGS Technique." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 4796–801. http://dx.doi.org/10.22214/ijraset.2021.35826.

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In this article, a multiband microband antenna fed by a microband feeder is proposed, with a total area of 30x24x1.6 mm ^ 3 [1]. The planned antenna is printed on the FR4 epoxy resin substrate with a relative dielectric constant of 4.4 [2]. The multiband characteristics are produced by the differently shaped grooves used in the ground plane. The antenna covers two frequency bands, 24.0 GHz to 24.53 GHz, for K-band applications, and 26.7 GHz to 27.6 GHz, for Ka-band applications [3] [4]. The prototype of the expected antenna is planned and measured in advance. Ansys HFSS software simulation results are consistent with measurement result.

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Paliwal, Ruchi, Shweta Srivastava, and Reema Buddhiraja. "Band pass filter size reduction by implementing substrate integrated waveguide technique." Journal of Information and Optimization Sciences 44, no. 6 (2023): 1241–50. http://dx.doi.org/10.47974/jios-1496.

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Pass Band Filter with precise selectivity is one of the major requirements of MMIC circuits. The major challenge while designing is size. This paper presents a size reduction technique for the Pass Band Filter by implementing SIW (Substrate Integrated Waveguide). The simulated results for the based filter show size reduction as resonance is shifting at the lower side of the frequency range. The passband filter without SIW is having resonance at 8.4GHz with return loss -26dB. After Implementing SIW results show resonance frequency at 7.2 GHz with a return loss of -23.86 dB without affecting the selectivity of the pass band filter. For Design Simulation, Ansys HFSS is used.

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Vivek, Bajpai, Kaur Parneet, Kumar Verandra, Basita Alok, Vasistha Prashant, and Kumar Ravindra. "The Effect of Turbulence on Dynamic Radar Cross Section of Chaff Clouds." Indian Journal of Science and Technology 15, no. 2 (2022): 62–68. https://doi.org/10.17485/IJST/v15i2.2143.

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ABSTRACT Objective: This research reports the effect of turbulence on the dynamic Radar Cross Section (RCS) of chaff cloud. In the era of modern warfare technologies, most efficacious electronic countermeasure employed by the armed forces of various major powers is the Chaff. Chaff is based on the expulsion of numerous electrical dipoles of different length to cover the broad spectrum of radar frequency. This mechanism helps in deceiving the enemy missile by producing the required RCS. RCS of chaff cloud is a dynamic entity and rely on several aerodynamic factors. Methodology: Effects of turbulence on dynamic RCS are studied using Ansys Fluent for aerodynamic blooming simulation and Ansys HFSS for simulation of RCS of the bloomed chaff cloud. Findings: The subject of the paper corresponds to the significant effect of turbulence on the expeditious blooming of chaff cloud. The RCS of turbulent flow was higher by 1.5dBsm to 2.5dBsm for 50msec. The turbulence effect has reduced the blooming time of chaff filaments in the range of 25msec - 50msec. Novelty: Turbulence plays important role in faster blooming of chaff cloud and achieving minimum threshold RCS required for deception of RF seeker missiles. Keywords: Chaff; RCS; Turbulence; Modelling and Simulation

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Nissanov, Uri, and Ghanshyam Singh. "High directivity microstrip antenna with stopband and passband frequency selective surfaces for 6G at low-THz." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 6 (2022): 6272. http://dx.doi.org/10.11591/ijece.v12i6.pp6272-6283.

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There is still no high-directivity microstrip antenna with directivity beyond 25 dBi, bandwidth (BW) of more than 24%, which can be used for 6G cellular communication at low-THz at a resonance frequency of 144 GHz. So, duo broadband microstrip antennas have been designed at a resonance frequency of 144 GHz with the Taconic TLY-5 laminate in this work. These designs were carried out with the computer simulation technology microwave studio (CST MWS) software. The first antenna simulation results were compared within an Ansys high-frequency structure simulator (HFSS) software, and the obtained simulation results from both software were in fair consent, supporting the proposed designs. The peak directivity, peak gain, total peak efficiency, and BW obtained for the proposed THz microstrip antennas were 27.01 dBi, 25.3 dB, 78.96%, and 34.21 GHz (24.93%), respectively. Therefore, these antennas can be a base for 6G at low-THz.

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Uri, Nissanov, and Singh Ghanshyam. "High directivity microstrip antenna with stopband and passband frequency selective surfaces for 6G at low-THz." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 6 (2022): 6272–83. https://doi.org/10.11591/ijece.v12i6.pp6272-6283.

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Dukanac, Đorđe. "Power Transformer Numerical Modeling to Locate Partial Discharge Source Using the UHF Technique." B&H Electrical Engineering 17, no. 2 (2023): 24–31. http://dx.doi.org/10.2478/bhee-2023-0009.

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Abstract Using three-dimensional full-wave electromagnetic simulations with Ansys HFSS, this paper analyses the effect of the actual design of a small power transformer on the propagation of ultra-high frequency (UHF) waves from a partial discharge (PD) source to four UHF antennas. Based on these results, the goal is to localize the source of PD. Three power transformer models of different complexity are used to do that. Due to the effects of their all taken into account reflections and diffractions caused by the metal parts in the power transformer, the received PD waveforms at UHF sensors are distorted to an appropriate extent. Time differences of arrivals (TDOAs) of the signals at pairs of four simulated UHF sensors are investigated to estimate the location of the PD source. The benefits of this assessment of the PD source location using this simulation software are analysed.

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Baskar, Karthik, Pavithra Krishnamoorthy, Nehrujee Vishalinee, Padmavarshini Sivakumar, Anita ., and Varshini Karthik. "Investigation on interaction of radiofrequency waves (microwaves) with saphenous veins." International Journal of Engineering & Technology 7, no. 2.8 (2018): 63. http://dx.doi.org/10.14419/ijet.v7i2.8.10328.

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Varicose veins contract when heated through microwave ablation. Heat application through microwave ablation, the collagen tends to regain its elasticity. In this paper, we propose simulation of the varicose vein with a wearable micro strip patch antenna. ANSYS HFSS 17.2 is an electromagnetic finite element method solver. The phantom model of human skin with normal vein and varicose vein with a wearable micro strip patch antenna was designed using this software. The wearable micro strip patch antenna is designed so that this approach is minimally invasive. The wearable micro strip patch antenna is modelled with a resonant frequency of 9.8 GHz. The temperature of about 45°C is proposed as the treatment for varicose vein.

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Annalakshmi, T., and S. Ramesh. "Compact SIW Based Planar Inverted F Antenna." International Journal of Engineering & Technology 7, no. 3.1 (2018): 194. http://dx.doi.org/10.14419/ijet.v7i3.1.17340.

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This article describes the single band Planar Inverted F Antenna (PIFA) for movable application. This structure of the antenna comprises of a rectangular patch located on top of the Flame Retardant 4 (FR4) dielectric substrate using Substrate Integrated Waveguide (SIW).The bottom side of the substrate is completely covered by a full ground made up of copper material. The complete measurement of PIFA is 21.72 mm x 18.5 mm x 4mm.This antenna has low profile, small size, and good gain hence it is more suitable for mounting on the cellular phone. The performance of PIFA antenna is represented in terms of return loss, VSWR and gain by using the simulation tool Ansys HFSS.

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Lu, Chong Ying, Jian Hua Li, Li Xin Xu, and Zhi Gang Wang. "RF Performances of MEMS Suspended Inductor under High Overload Environments." Key Engineering Materials 609-610 (April 2014): 1503–7. http://dx.doi.org/10.4028/www.scientific.net/kem.609-610.1503.

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The radio frequency (RF) performances of MEMS suspended spiral inductor under high overload environments are studied. Firstly, a suspended spiral inductor and its MEMS surface micromachining process which is compatible with CMOS process are developed. Then, the mechanical responses and RF performances of the inductor are simulated by ANSYS and HFSS, respectively. The simulation results show that, as the overload increases, the inductance and quality factor decrease significantly when the frequency band is closed to the resonant frequency but have no significant change when the frequency band is much lower than resonant frequency; the resonant frequency of the suspended inductor decreases monotonically with the increase of overload. A modified lumped parameter model is utilized to illustrate the simulation results, which theoretically indicates that the substrate loss is more severe than the ohmic loss as the overload increases.

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Achour, Yahia, and Jacek Starzyński. "High-frequency displacement current transformer with just one winding." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 38, no. 4 (2019): 1141–53. http://dx.doi.org/10.1108/compel-10-2018-0414.

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Purpose This paper aims to describe a new concept of transformer based on the displacement current. The paper shows how this idea can be translated into reality and presents an example of a working design. Design/methodology/approach The authors replace the primary winding of the transformer with a capacitor. The displacement current between the capacitor plates induces a magnetic flux in the core. This flux in turn induces electromotive force in the classical secondary winding. Findings The basic mathematical aspects illustrated by results obtained from a simulation developed using a commercial software ANSYS-HFSS are given. The saturation of the magnetic core due to the applied high-frequency range is investigated and simulated using a finite difference time domain code implemented in MATLAB. A prototype transformer was built and tested; the obtained results confirm the previous ones from simulations. Originality/value A new concept of the single winding transformer was used as a pulse forming circuit.

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Solano-Perez, Jose Antonio, María-Teresa Martínez-Inglés, Jose-Maria Molina-Garcia-Pardo, et al. "On Differential Imaging Using Electromagnetic Simulation for Vehicular Antenna Signature Analysis." Sensors 21, no. 11 (2021): 3796. http://dx.doi.org/10.3390/s21113796.

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The current trend in vehicles is to integrate a wide number of antennae and sensors operating at a variety of frequencies for sensing and communications. The integration of these antennae and sensors in the vehicle platform is complex because of the way in which the antenna radiation patterns interact with the vehicle structure and other antennae/sensors. Consequently, there is a need to study the radiation pattern of each antenna or, alternatively, the currents induced on the surface of the vehicle to optimize the integration of multiple antennae. The novel concept of differential imaging represents one method by which it is possible to obtain the surface current distribution without introducing any perturbing probe. The aim of this study was to develop and confirm the assumptions that underpin differential imaging by means of full-wave electromagnetic simulation, thereby providing additional verification of the concept. The simulation environment and parameters were selected to replicate the conditions in which real measurements were taken in previous studies. The simulations were performed using Ansys HFSS simulation software. The results confirm that the approximations are valid, and the differential currents are representative of the induced surface currents generated by a monopole positioned on the top of a vehicle.

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Kumar, B. Ashok, P. Mallikarjuna Rao, and M. Satyanarayana. "Performance Analysis of 1x4 RMPA Array using Step Cut and DGS Techniques with Different Feed Techniques for LTE, Wi-Fi, WLAN and Military Communications." Review of Computer Engineering Research 9, no. 3 (2022): 181–99. http://dx.doi.org/10.18488/76.v9i3.3146.

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This paper presents four different models of 1x4 antenna arrays excited by quarter wave transformer and mitered bend feeding techniques. These four antennae were designed and developed to examine the various radiation performance characteristics. The Ansys HFSS tool was used to simulate the four antenna models over the frequency range (1-5GHz). The simulation results were compared to identify the optimized design model. Both types of 1X4 arrays with mitered bend feed network showed better results than quarter wave transformer and were resonating at 2.4, 3.6, 4.5 and 4.7 GHz frequencies with a maximum gain of 13.118dB. The proposed antennae are suitable for Wi-Fi, Long Term Evolution (LTE), Wireless Local Area Network (WLAN) and military communication applications. The optimized four 1x4 array models were fabricated and tested using Vector Network Analyzer E507C. The measured results had good matching with the numerical values of the simulation results.

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Ermiş, Seda, and Murat Demirci. "Improving the Performance of Patch Antenna by Applying Bandwidth Enhancement Techniques for 5G Applications." Tehnički glasnik 17, no. 3 (2023): 305–12. http://dx.doi.org/10.31803/tg-20220819001236.

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In this study, various Rectangular Microstrip Antenna (RMA) designs operating at 28 GHz frequency for 5G-communication system are performed. All designs are generated and analyzed using a 3D electromagnetic simulation program, ANSYS HFSS (High-Frequency Structure Simulator). Single and array type RMA designs are constructed by using non-contact inset-fed feeding technique. Subsequently, the bandwidth of RMAs is increased by slotting on the ground surface, and adding a parasitic element to the antenna structure. Because of these analyses, for single type RMA, the bandwidth increases from 2.09 GHz to 3.45 GHz. Moreover, for 1 × 2 and 1 × 4 array type RMAs, very wide bandwidths of 7.53 GHz and 4.53 GHz, respectively, are obtained by applying bandwidth enhancement techniques. The success of the study has been demonstrated by comparing outputs of the designs with the some similar, experimental or simulation studies published in the literature.

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Ma, Shiqi, Wolfgang Heinrich, and Viktor Krozer. "Design of an Embedded Broadband Thermoelectric Power Sensor in the InP DHBT Process." Engineering Proceedings 2, no. 1 (2020): 10. http://dx.doi.org/10.3390/ecsa-7-08206.

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The thermopile-based thermoelectric sensor has emerged as an important approach for microwave power measurement. It employs the Seebeck effect, which converts the microwave power into the heat and generates the thermovoltage. However, the output thermovoltage generally exhibits a frequency-dependent feature, which affects measurement accuracy. Besides, the low sensitivity of the current existed planar thermopile-based sensor constrains its further application. This is mainly caused by the heat loss of the substrate in the conversion process of microwave power-heat-electricity. In this paper, a novel embedded power sensor based on the indium phosphide (InP) double heterojunction bipolar transistor (DHBT) process is presented. The thermopile is embedded in the benzocyclobutene (BCB) to prevent the heat loss, and the embedded structure also enables this sensor to eliminate the need for microelectromechanical system (MEMS) technology. The electromagnetic simulation by ANSYS high frequency structure simulator (HFSS) and thermal simulation by ANSYS Steady-State Thermal are combined to evaluate the sensor performance. The result shows that the output voltage increases with the input power linearly, and the proposed sensor is almost independent of the microwave frequency. A sensitivity of l.07 mV/mW has been achieved up to 200 GHz, with the port return loss lower than −15.8 dB.

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