Journal articles: 'Ansoft Designer'

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Rudra, Monojit, P. Soni Reddy, Rajatsubhra Chakraborty, and Partha Pratim Sarkar. "Design of frequency selective surface comprising of dipoles using artificial neural network." International Journal of Advances in Applied Sciences 9, no. 4 (December 1, 2020): 276. http://dx.doi.org/10.11591/ijaas.v9.i4.pp276-283.

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This paper depicts the design of Frequency Selective Surface (FSS) comprising of dipoles using Artificial Neural Network (ANN). It has been observed that with the change of the dimensions and periodicity of FSS, the resonating frequency of the FSS changes. This change in resonating frequency has been studied and investigated using simulation software. The simulated data were used to train the proposed ANN models. The trained ANN models are found to predict the FSS characteristics precisely with negligible error. Compared to traditional EM simulation softwares (like ANSOFT Designer), the proposed technique using ANN models is found to significantly reduce the FSS design complexity and computational time. The FSS simulations were made using ANSOFT Designer v2 software and the neural network was designed using MATLAB software.

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Jovanovic, Predrag, Sinisa Tasic, and Branka Jokanovic. "Voltage-controlled oscillator at 6 GHz for Doppler radar in heart sensing applications." Serbian Journal of Electrical Engineering 6, no. 3 (2009): 471–78. http://dx.doi.org/10.2298/sjee0903471j.

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In this paper, the design of a low noise voltage controlled oscillator (VCO) for heart sensing applications is presented. It is designed using Ansoft Designer software to have a low level of phase noise, therefore a bipolar transistor is chosen. Many effects such as the behavior of large signals, the parasitic effects of packages, etc., are taken into account. Hence, through a nonlinear analysis, quite accurate simulation results are provided.

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Wang, Li Fa, Rui Xia Yang, Jing Feng Wu, and Ying Qian Jia. "A Low Phase Noise Voltage-Controlled Oscillator with Harmonic Suppression Based on LTCC Technology." Advanced Materials Research 148-149 (October 2010): 1235–40. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1235.

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In this paper, a low phase noise hybrid integrated voltage-controlled oscillator (VCO) module with harmonic suppression based on LTCC technology is presented. This is the first report about the hybrid integrated VCO module based on the LTCC substrate in china mainland. The design is simulated and optimized by the ansoft designer and the ansoft HFSS software. To miniaturize the VCO module, two capacitors and an inductor that adjust the oscillation frequency and two capacitors as feedback capacitors are buried in the LTCC substrate. Three resistances for direct current bias are made on the surface of the LTCC substrate. Also the low-pass filter that used for harmonic suppression is embedded in the LTCC substrate. The VCO module achieves an output power of more than 10 dBm in a tuning range between 1000-1200MHz. The measured phase noise is lower than -112.2 dBc/Hz at 10KHz offset between 1000-1200MHz. The overall dimension is as small as 8 mm×7 mm×3.5 mm.

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Mondal, Kalyan, and Partha Pratim Sarkar. "Enhancement of the gain and bandwidth of the microstrip patch antenna with modified ground plane." International Journal of Microwave and Wireless Technologies 9, no. 5 (November 21, 2016): 1179–84. http://dx.doi.org/10.1017/s1759078716001276.

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In this work, microstrip antenna with W- and V-shaped radiating patches have been proposed. Here square- and circular-shaped modified ground planes have been designed by poly tetra fluoro ethylene (PTFE) substrate with dielectric constant 2.4. Broadband with high gain is obtained by optimum selection of radiating patch with modified ground plane. The ground planes are modified by loading a U-shaped slot. The simulated and measured results are compared. Considering −10 dB impedance bandwidth maximum frequency band of 6.97 GHz (3.04–10.01 GHz) with percentage bandwidth of 106.8% is achieved. The proposed antenna exhibits maximum peak gain of 5.1 dBi. The simulation and measurement have been done by Ansoft designer software and vector network analyzer.

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Silva, Jefferson Costa e., and Thamyris Da Silva Evangelista. "Caracterização numérica de antenaplanar para aplicação no sistema de comunicação móvel 4G utilizando a técnica de inserção de fendas." Revista Principia - Divulgação Científica e Tecnológica do IFPB 1, no. 27 (December 2, 2015): 118. http://dx.doi.org/10.18265/1517-03062015v1n27p73-77.

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Este trabalho teve como objetivo o desenvolvimento de uma antena com pequenas dimensões que atue na faixa de frequência utilizada pelo sistema de quarta geração de telefonia móvel (4G) – 2,5 GHz a 2,69 GHz. As simulações foram realizadas utilizando o software comercial Ansoft Designer. A estrutura escolhida para a simulação foi uma antena planar, que devido a algumas de suas características – tais como baixo perfil, pequenas dimensões e custo reduzido –, é importante para sistemas que demandam conectividade aliada à mobilidade, como é o caso do sistema 4G.

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Saad, R. Abi, Zeina Melhem, Chadi Nader, Youssef Zaatar, and Doumit Zaouk. "U-Patch Antenna for RFID and Wireless Applications." Advanced Materials Research 324 (August 2011): 434–36. http://dx.doi.org/10.4028/www.scientific.net/amr.324.434.

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in this paper, we propose a new multi-band patch antenna structure for embedded RFID (Radio Frequency Identification) readers and wireless communications. The proposed antenna is a dual band microstrip patch antenna using U-slot geometry. The operating frequencies of the proposed antenna are chosen as 2.4 and 0.9 (GHz), obtained by optimizing the physical dimensions of the U-slot. Several parameters have been investigated using Ansoft Designer software. The antenna is fed through a quarter wavelength transformer for impedance matching. An additional layer of alumina is added above the surface of the conductors to increase the performance of the antenna.

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Hussain, Ghasan Ali. "DESIGN OF PARALLEL COUPLED MICROSTRIP BAND-PASS FILTER." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 15, no. 5 (April 21, 2016): 6768–75. http://dx.doi.org/10.24297/ijct.v15i5.1650.

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Filters occupy important acts in several Radio Frequency microwave applications. Several applications such as wireless communications still challenge RF/microwave filters with strict requirements such as smaller size, higher performance, lighter weight, and lower cost. Microstrip Filters for RF/Microwave Applications offers a unique and comprehensive treatment of RF/microwave filters based on the microstrip structure. One of the most common methods in designing microwave filters is using of parallel-coupled microstrip. In this paperÂ simulate and fabricate by using Ansoft Designer a two resonator microstrip band-pass filter suitable for Wi-Fi applications.Â The results of simulation were quite good.

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Sun, Hong Wei. "The Multiport Analysis of Microstrip Circuits Using Gaussian Green’s Function Method." Applied Mechanics and Materials 462-463 (November 2013): 636–42. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.636.

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The microstrip circuits are analyzed using the Gaussian Green’s function method (GGF) together with network analysis method. The main advantage of the GGF lies in its precision as well as rapid convergence. The multiport network analysis of microstrip circuits can effectively reduce the complexity of the modeling. A novel method is derived by combining of the multiport network analysis and GGF. To demonstrate the versatility of this method, the current distribution of two microstrip filter circuits is achieved by this method. The results are compared with the results of the commercial full-wave software of Ansoft Designer. It is shown that this method is much more accurate and valid.

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Zheng, Li Qiang, Alan Mathewson, Brendan O'Flynn, Michael Hayes, and Cian O'Mathuna. "Impact Study of Substrate Materials on Wireless Sensor Node RF Performance." Materials Science Forum 663-665 (November 2010): 455–61. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.455.

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In this paper, the effect of the substrate on wireless sensor network (WSN) node’s RF performance is studied experimentally by using different substrate materials with different thickness. A six-layer FR4 substrate PCB WSN node is fabricated and compared with the original two-layer FR4 PCB node to show the impact of substrate material thickness. Also different substrate dielectric constants’ impacts are studied by the same method. All these demonstrators are modeling by RF circuit analysis method and simulated in the Ansoft Designer software. Simulation results match the experimental measurement. An optimization method based on simulation for WSN node design with different substrate is presented. This analysis, modeling, simulation and optimization procedure can be carried out on some novel substrate materials such as LTCC and LCP.

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Yao, Zhu Ting, and Jing Jing Ge. "Electromagnetic Compatibility of PCB Based on Electromagnetic Simulation Methods." Applied Mechanics and Materials 556-562 (May 2014): 1794–97. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1794.

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With the circuit fabrication technology continues toward high-speed, high-density, low-power direction, modern circuit design techniques have changed radically. The speed improvement of digital system means rise and fall time of signals as short as possible, the improvement of frequency and edge rates will bring a series of high-speed design problems, these problems bring great challenges to the system hardware design, the correct design from logical point of view, if there is improper in the actual PCB design will lead to failure of the entire design. EMI radiation of PCB is analyzed, EMC simulation of PCB and optimizing improved are finished. The PCB electromagnetic compatibility is analyzed by using Protel 99SE and Ansoft Designer 2.2 software, and simulation result indicates optimizing design is correct and effective.

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Pongot, Kamil, Abdul Rani Othman, Zahriladha Zakaria, Mohamad Kadim Suaidi, Abdul Hamid Hamidon, J. S. Hamidon, and Azman Ahmad. "Design and Analysis High Gain PHEMT LNA for Wireless Application at 5.8 GHz." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 3 (June 1, 2015): 611. http://dx.doi.org/10.11591/ijece.v5i3.pp611-620.

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This research present a design of a higher gain (66.38dB) for PHEMT LNA using an inductive drain feedback technique for wireless application at 5.8GHz. The amplifier it is implemented using PHEMT FHX76LP transistor devices. The designed circuit is simulated with Ansoft Designer SV. The LNA was designed using T-network as a matching technique was used at the input and output terminal, inductive generation to the source and an inductive drain feedback. The low noise amplifier (LNA) using lumped-component provides a noise figure 0.64 dB and a gain (S21) of 68.94 dB. The output reflection (S22), input reflection (S11) and return loss (S12) are -17.37 dB, -15.77 dB and -88.39 dB respectively. The measurement shows the stability was at 4.54 and 3-dB bandwidth of 1.72 GHz. While, the low noise amplifier (LNA) using Murata manufactured component provides a noise figure 0.60 dB and a gain (S21) of 66.38 dB. The output reflection (S22), input reflection (S11) and return loss (S12) are -13.88 dB, -12.41 dB and -89.90 dB respectively. The measurement shows the stability was at 6.81 and 3-dB bandwidth of 1.70 GHz. The input sensitivity more than -80 dBm exceeded the standards required by IEEE 802.16.

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Hernandez Ambato, Valeria, and Hugo Moreno Avilés. "Miniaturización de una Antena Microstrip Aplicando Diseño Fractal T-cuadrado." Revista Perspectivas 3, no. 2 (July 12, 2021): 36–44. http://dx.doi.org/10.47187/perspectivas.vol3iss2.pp36-44.2021.

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Este documento describe el diseño e implementación de una antena fractal microstrip miniaturizada con frecuencia de operación a 2.4 GHz para la aplicación en dispositivos portables. La antena se desarrolló considerando la frecuencia de operación y las características del material. El material utilizado es RO4003C con permitividad dieléctrica εr = 3.38 y espesor h = 0.254 mm. Se aplicó dos técnicas de miniaturización: por la forma y ranura en el parche. La forma del parche miniaturizado se deﬁnió en la segunda iteración del diseño fractal del T-cuadrado. El proceso de optimización del diseño de la antena se realizó mediante simulaciones y se utilizó la herramienta Ansoft Designer. Se implementó el diseño de la antena ﬁnal que alcanzó el valor del parámetro S de -21 dB. Las mediciones se realizaron con la antena transmisora y receptora separadas a 15 cm y con potencia de entrada de 15 dBm. El diseño del parche ﬁnal presentó el 46,65 % de miniaturización del tamaño con respecto al parche original. La optimización del diseño ﬁnal de la antena presentó el 62,2 % de reducción en el tamaño con respecto a la antena microstrip inicial.

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Hurtado Crespo, Galo, Juan Pérez Pérez, and Zoila Contreras Paguay. "Comparación de rendimiento de antenas microstrip con diferentes frecuencias y polarización." Ciencia Digital 4, no. 3 (July 14, 2020): 107–16. http://dx.doi.org/10.33262/cienciadigital.v4i3.1304.

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El trabajo de investigación se basa en el análisis del funcionamiento de las antenas microstrip para lo cual se realizó el diseño de tres antenas diferentes, que trabajen en bandas que van desde los 800 MHz – hasta los 5,5 GHz comprobando que la funcionalidad sea eficiente y que no interfieran con otras bandas de frecuencias, existen muchas ventajas que se pueden tomar en consideración al momento de implementar antenas con la tecnología microstrip, como son el costo, la fácil fabricación, trabaja a grandes frecuencias y la suficiente cantidad de información en los diferentes repositorios, para poder realizar las pruebas, primero se tiene que diseñar el modelo de la antena en el software Ansoft Designer, posteriormente se tiene que realizar el análisis de resonancia de frecuencias y patrón de radiación, determinando la frecuencia en la que trabaja, así como el ancho de banda y la ganancia de cada una de ellas, una vez comprobado el correcto funcionamiento de las antenas se procede a la fabricación de la antena, se tiene que seleccionar el material, el grosor del material, así como los conectores y los puntos de suelda que se realicen, todos estos factores influyen en el óptimo funcionamiento de las antenas, finalmente para poder realizar las pruebas de campo es necesario trabajar con un analizador de espectros radioeléctrico, el mismo generar diferentes señales con ganancias e impedancias diferentes, que permitirán determinar en qué banda de frecuencias está trabajando.

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Kaushik, V. R., and R. K. Gangwar. "A Novel Four Element Low Profile and Compact Conical Dielectric Resonator Antenna for Wideband Applications." Advanced Electromagnetics 7, no. 2 (February 28, 2018): 1–4. http://dx.doi.org/10.7716/aem.v7i2.650.

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In this paper, a four element Conical Dielectric Resonator Antenna fed through coaxial probe is presented. This Low Profile and compact novel Antenna is designed for Wideband application and its input and radiation characteristics determined through the Ansoft High Frequency Structure Simulator (HFSS) Software. The proposed antenna provides wide Bandwidth (45%) and high average gain (5.15 dBi) with Monopole type Radiation Pattern.

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Tao, Kai, Gui Fu Ding, Pei Hong Wang, Qi Fa Liu, and Zhuo Qing Yang. "Design and Simulation of Fully Integrated Micro Electromagnetic Vibration Energy Harvester." Applied Mechanics and Materials 152-154 (January 2012): 1087–90. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.1087.

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A fully integrated micro electromagnetic vibration energy harvester based on MEMS technology is designed and its mechanical and electromagnetic characteristics are analyzed by using Finite Element method (FEM). Structure static, modal and harmonic analysis of spring-magnet system was carried out by ANSYS software. Ansoft Maxwell software was used to simulate the electromagnetic characteristics of the energy conversion system, especially the relationship between the output performances of the structure and parameters of the coil. The optimized model is designed and the optimization principles could provide a reference for the future electromagnetic vibration based harvester design.

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Abdulhamid, Mohanad, and Eugene Ochieng. "Review Design of Slot Antenna Based on Ansoft HFSS Software." Technological Engineering 16, no. 1 (October 1, 2019): 65–68. http://dx.doi.org/10.1515/teen-2019-0010.

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Abstract In this paper, a micro-strip fed slot antenna array for application in the 2.4GHz industrial, scientific and medical(ISM) band is implemented using the Ansoft HFSS software. Standard formulas are used to calculate different antenna parameters. The proposed antenna is designed to work at 2.4GHz frequency band. A half power beam width(HPBW) of 57°. A bandwidth of around 7.7% is attained. This may have been brought about by poor impedance matching and a high level of surface waves. A way of improving the bandwidth would have been to use proximity coupling feeding method which offers the highest bandwidth and is somewhat easy to model and has low spurious radiation. However, its fabrication would have been more difficult. A directivity of 2.01 dB is achieved. This is a fairly high though directivity increase could have been studied through use of different substrate material and thickness. Adjusting length and width of narrow slot loop antenna will influence on the resonance frequency and bandwidth. By using HFSS software, the characteristics of antenna are investigated and analyzed, including voltage standing wave ratio (VSWR), return loss and far field radiation patterns.

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Jiang, Guo Jun, and Sai Zhang. "Design of Terraced Spinneret Based on Simulation of Electric Field Distribution in Electrospinning." Advanced Materials Research 690-693 (May 2013): 3132–35. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.3132.

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The low productivity of conventional single-needle electrospinning inhibits the application of nanofibers to a commercial level. In order to improve the productivity of the electrospinning technique, a terraced spinneret has been designed based on the finite element analysis in this paper. The electric field distribution was modeled with the use of Ansoft Maxwell software. The experiment results demonstrated this special design spinneret has the potential to produce smooth nanofibers on a large scale.

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Liu, Hua, Wei Jun Wang, Long Bo Mao, and Qiang Dai. "Optimization Analysis of Structure Parameters for External Rotor DSPM Motor." Advanced Materials Research 712-715 (June 2013): 2133–38. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.2133.

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The external rotor doubly salient permanent magnet (DSPM) motor which included permanent magnet in the rotor tooth was designed. The two-dimensional model of the motor was established and several structure parameters were analyzed by Ansoft electromagnetic analysis software. The relationship of the structure parameters and the average electromagnetic torque and winding induction potential was obtained. The simulation results show that smaller or bigger stator yoke depth and the pole thickness is not good for the motor efficient operation.

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Chen, De Min, Qing Ge Cai, and Hong Zhang. "Simulation and Test Study of Multidisc Magneto-Rheological Fluid Clutch." Applied Mechanics and Materials 599-601 (August 2014): 464–67. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.464.

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A Magneto-rheological Fluid Clutch (MRC for short) which has a novel and simple structure is designed; the research on the magnetic field distribution is based on the finite element simulation software which is named Ansoft; In order to test the work performance, the electronic torsion testing machine is used for the torque transmission capability and controllability test. The experimental results reveal that the MRC could meet the torque transmission demand of high power machine and response quickly and reliably.

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Jiang, Guo Xing. "The Design of Dual Band Circularly Polarized Patch Antenna for Civilian GPS Applications." Applied Mechanics and Materials 397-400 (September 2013): 1967–71. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.1967.

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Antenna is all important part of GPS receivers，there is a great need for the design and production of new antennas which are fully compatible with modernized signals. Because of their advantages such as low cost, compact size, low profile，ability to support dual-frequency and circular polarization operation, microstrip patch antennas have become widely used in GPS antenna designs. A circular polarization patch antennas are proposed in the paper. The antenna designed to operate at L1(1575.42MHz) and L5(1176.45MHz)frequency bands. Initially, a comer-truncated patch antenna for GPS L1 operation was designed to validate simulation in Ansoft High Frequency Structure Simulator(HFSS), the results obtained for this antenna were used to design the two proposed antennas,and designed antennas are presented．

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Yang, Jun Xiu, Lin Li, and Wen Lai Zhao. "Design of Dual-Frequency Microstrip Patch Antenna." Advanced Materials Research 516-517 (May 2012): 1594–98. http://dx.doi.org/10.4028/www.scientific.net/amr.516-517.1594.

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A dual-frequency microstrip patch antenna is proposed based on rectangular microstrip patch, with appropriating feed location selection of 50Ω coaxial line, two frequency are respectively applied to 0.8GHz and 0.9GHz. Size of antenna is designed based on the simulation software of HFSS from ANSOFT company, reducing antenna return loss by adjusting size and completing matching between patch and coaxial line, results are analyzed. Simulation results show the design and implementation of microstrip patch antenna have certain reference value with small return loss on 0.8GHz and 0.9GHz.

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Deng, Zhong Liang, and Han Moran. "Design and Simulation of a Ka-Band Pattern Reconfigurable Microstrip Patch Antenna." Advanced Materials Research 875-877 (February 2014): 1170–75. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.1170.

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This letter presents a Ka-band(26.5GHz-40GHz) microstrip patch antenna with pattern reconfigurable characteristic. The antenna is provided with five rectangular patches and four RF MEMS (microelectromechanical systems for RF circuits) switches. The central patch and other surrounding patches are connected by the switches. By changing the states of the switches, the antenna can achieve four radiation patterns and it is designed and simulated by using Ansoft HFSS. In addition, the different states are operated at the same centre frequency of 35GHz and the gain of the main radiation direction is about 7.5dB

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Gao, Shun, An Guo Wang, Jing Pei, and Guo Huang Zhao. "A Novel Slot-Ring Coupling Antenna with Switchable Polarization." Applied Mechanics and Materials 130-134 (October 2011): 4011–15. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.4011.

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In this paper, a novel slot-ring coupling antenna with reconfigurable circular polarization is presented. The antenna consists of Wilkinson power divider and a slot-ring with perturbations. By controlling the states of the switches, the antenna can achieve right-hand circular polarization (RHCP), left-hand circular polarization (LHCP) in the same direction, respectively. The proposed antenna is designed and simulated using Ansoft HFSS. The measured results of the fabricated antenna are in good agreement with the simulated. Both measured and simulated results of the antenna are presented and discussed.

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S. Mohan Reddy, S., M. M. Vinod Kumar, B. Sanjay, K. Aruna Kumari, and G. V. S. Padma Rao. "Microstrip Line Fed Fractal Monopole Antenna with Defected Ground Structure." International Journal of Engineering & Technology 7, no. 3.31 (August 24, 2018): 21. http://dx.doi.org/10.14419/ijet.v7i3.31.18193.

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This paper presents a wideband polarized antenna that is designed and analyzed for the cellular communication applications. The proposed antenna is designed with the coplanar wave guide feeding (CPW) by using the RT/ duroid 5880 material with a dielectric constant 2.2. It is observed that in the proposed model the return loss is -21.40dB for ungrounded CPW where as for the grounded CPW the loss is reduced to -39.13dB. The gain for the ungrounded CPW fed antenna is 2.95 dB and is enhanced to 3.2dB with grounded CPW structure. It is observed that there is an improvement in the bandwidth upto 6.03 GhZ for grounded CPW when DGS is applied. The antenna designing and simulation is done using ANSOFT HFSS software.

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Guo, Hong Fu, Chao Xu, Cai Xiang Xu, and Gui Hua Gao. "A New Measuring Method of the Relatively Permittivity Based on Antenna's Resonant Characteristics." Applied Mechanics and Materials 475-476 (December 2013): 95–98. http://dx.doi.org/10.4028/www.scientific.net/amm.475-476.95.

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This paper proposes a matter of permittivity measurement method which based on the microwave antennas resonant characteristics. The basic principle of measuring permittivity was analyzed by the antenna resonance theory. The simulation model has been build and analyzed by Ansoft HFSS simulation software. The relationship between different permittivity and the antennas resonant frequency was given. The experimental model was designed and the experimental data of sample was measured. The experimental and simulation data are compared and discussed. Results show that the simulation and experimental results are consistent well; the antenna resonance method to measure the permittivity is feasible.

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Madhav, B. T. P., V. G. K. M. Pisipati, D. Madhavi Latha, and P. V. Datta Prasad. "Planar Dipole Antenna on Liquid Crystal Polymer Substrate at 2.4 GHz." Solid State Phenomena 181-182 (November 2011): 289–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.181-182.289.

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Liquid crystal polymers are the low cost, flexible structured and low weight substrate materials for making antennas. Liquid crystal polymers are excellent dielectric materials having good electrical, mechanical properties which suites in the application of microstrip patch antennas. In this paper liquid crystal polymer with dielectric constant 3.16 is used as substrate material for planar dipole antenna designed to operate at 2.4 GHz. Ansoft-HFSS software is used to simulate the proposed model and obtained the return loss, input impedance, 3D-gain, 2D-gain total, radiation patterns in E and H planes, E-field and H-field distribution results.

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Deepak, A., P. Muthu Kannan, and P. Shankar. "Design and Fabrication of Graphene Reinforced Polymer Conductive Patch-Based Inset Fed Microstrip Antenna." International Journal of Nanoscience 17, no. 01n02 (October 12, 2017): 1760019. http://dx.doi.org/10.1142/s0219581x17600195.

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This work explores the design and fabrication of graphene reinforced polyvinylidene fluoride (PVDF) patch-based microstrip antenna. Primarily, antenna was designed at 6[Formula: see text]GHz frequency and simulation results were obtained using Ansoft HFSS tool. Later fabrication of antenna was carried out with graphene–PVDF films as conducting patch deposited on bakelite substrate and copper as ground plane. Graphene–PVDF films were prepared using solvent casting process. The radiation efficiency of fabricated microstrip patch antenna was 48% entailing it to be adapted as a practically functional antenna. Both simulated and the practical results were compared and analyzed.

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Nordin, Siti Aminah, Mohd Khairul Mohd Salleh, Zuhani Ismail Khan, Norfishah Ab Wahab, Latifah Noh, and Zakiah Mohd Yusoff. "SIW Circular Cavity Single Mode Filter With Triangle Probe." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 2 (August 1, 2018): 672. http://dx.doi.org/10.11591/ijeecs.v11.i2.pp672-676.

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A novel substrate integrated waveguide (SIW) circular cavity using triangle probe are proposed in this paper. Prior to this research work, circular cavity resonator was used to achieve a miniaturization for the overall circuit size. The proposed filter provides single resonant mode, TE110. The resonant frequency of TE110 can be adjusted by varying the length and width of the SIW cavity. The proposed filter are designed to operate at frequency 3.75 GHz and implemented on Rogers 3210 substrate with thickness of 0.64 mm. The insertion loss in operating band is less than 0.6 dB and the return loss is better than 24 dB. Simulated result obtained using Ansoft HFSS software.

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Wang, Bin, Shu Hui Yang, Di Feng, Ting Lan Wang, Zhen Wei Su, and Ying Chao Chen. "Design and Simulation of the Inverted F Antenna for RFID Tags." Applied Mechanics and Materials 303-306 (February 2013): 1822–25. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.1822.

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In this paper, an inverted F antenna works in the 5.8GHz frequency band is proposed. On the platform of Ansoft HFSS14 , the antenna’s return loss reaches -51.97dB at the center frequency 5.8GHz and the relative bandwidth is about 22.4％ when the return loss is less than -10dB. Also ,the size of the antenna is only 18mm*15mm. Compared with the existing antenna works in the same frequency band , the inverted F antenna proposed has a lower return loss and smaller physical size. The new designed antenna can be applied to the RFID system of road tolls and container management, which have certain values for application.

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Tang, Xiaoning, Dawei Zhang, Zhenbo Li, and Jiapin Chen. "An Omni-Directional Wall-Climbing Microrobot with Magnetic Wheels Directly Integrated with Electromagnetic Micromotors." International Journal of Advanced Robotic Systems 9, no. 1 (January 1, 2012): 16. http://dx.doi.org/10.5772/45663.

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This paper presents an omni-directional wall-climbing microrobot with magnetic wheels. The integral design with an actuator and adhesive is realized by integrating stators and rotors of an MEMS-based electromagnetic micromotor with a magnetic wheel. The omni-directional wall-climbing mechanism is designed by a set of steering gears and three standard magnetic wheels. The required torque and magnetic force for microrobot movement are derived by its static analysis. The size of the magnetic wheel is optimized, with consideration of its own design constraints, by ANSOFT and Pro/Engineer simulation so as to reduce unnecessary torque consumption under the same designed load. Related experiments demonstrate that the microrobot (diameter: 26mm; height: 16.4; mass: 7.2g; load capacity: 3g) we have developed has a good wall-climbing ability and flexible mobility, and it can perform visual detection in a ferromagnetic environment.

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Cheng, Peng, Feng Yan Li, and Ji Hui Li. "Design and Simulation Analysis of Doubly Fed Induction Generator Wind Turbines." Applied Mechanics and Materials 260-261 (December 2012): 142–47. http://dx.doi.org/10.4028/www.scientific.net/amm.260-261.142.

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With increasing emphasis on the energy crisis and environmental pollutions, wind power has been developing rapidly worldwide. Because of its unique advantage of variable-speed constant-frequency (VSCF), doubly fed induction wind generator (DFIG) has been widely used in the wind power industry. In this paper, a 3.5kW doubly fed induction wind generator is designed and modeled utilizing ANSOFT, after the optimization of the generator parameters, the data of the stator and rotor no-load and full-load are given by simulation. On this basis, a physical model of doubly fed wind generator is established by Maxwell 2D. And through a finite element triangulation, the distributions of magnetic lines of force and magnetic field within the motor are obtained.

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Cai, Zhi Yuan, and Zhan Nan Guo. "Simulation and Analysis for New Contact System of Control and Protective Switching Based on Ansoft Maxwell." Applied Mechanics and Materials 229-231 (November 2012): 1963–66. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.1963.

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CPS (control and protective switching) one of the smart integrated include the function of circuit breakers, contactors, and low-voltage electrical appliances. The contact system is different from the traditional low-voltage electrical function. Well-designed structure of the contact system has important practical significance for overall performance of CPS. The paper proposes a new contact system. The simulation analyze the electrical repulsion of the traditional contact system and a new contact system under different current size, breaking time, blowing arc magnetic field analysis by electromagnetic simulation software. According to the results of the simulation comparison, prove that the new contactor structure making the function of CPS increased.

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Ya bin, Chen, Zhang Zhen tao, Li Qiang, and Zou Ping Guo. "Design and Realization of Intelligent Phase-controlled System for Permanent Magnetic Actuator of AC Contactor." E3S Web of Conferences 165 (2020): 06019. http://dx.doi.org/10.1051/e3sconf/202016506019.

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When the AC contactor switches the capacitor bank, the phase angle of the power grid is random, so the electromagnetic transient process will generate large inrush current and overvoltage, causing large disturbance to the power system. A set of AC contactor with permanent magnetic actuator (PMA) and its intelligent phase selection control system are designed to solve this problem. Firstly, the PMA is designed. The dynamic characteristics of the actuator are simulated and analyzed in ANSOFT to meet the performance requirements of phase selection control. Then the principle of phase selection control and the strategy of switching capacitor bank are analyzed. Based on this, the software and hardware of intelligent phase selection control system are designed, including phase selection control module, IGBT driver module and coil discharge module. Finally, the experimental verification is carried out on the designed AC contactor. The test results show that the phase selection errors of the designed intelligence system are within 1°, and the contactor closing and opening time deviations are within 0.5ms, which means the system can effectively realize the closing and opening control at the specified phase angle.

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34

Ma, Shao Hua, and Chuang Liu. "TDV10 Type Vacuum Circuit Breaker Electromagnetic Operating Mechanism Design." Advanced Materials Research 912-914 (April 2014): 799–805. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.799.

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TDV10 upright type vacuum circuit breaker is mainly used for electric locomotive running in the process of main circuit disconnection and connection, and also applied in the overload protection and short circuit protection.And TDV10 type operating mechanism is pneumatic, pneumatic structure because of its complex structure, cylinder work noise, air leakage risk, now a electromagnetic operating mechanism is designed to replace the pneumatic institution.TDV10 type circuit breaker through analysis the principle and performance parameters of the comparison, put forward the feasibility in theory, and gives the basic design of the electromagnetic mechanism and external circuit.Using Ansoft software design agency for static and dynamic simulation analysis of magnetic field. Through the analysis and comparison of the curve of each parameter, verify the feasibility of the design.

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Yang, Chao Jun, Zhi Jiang Ni, and Wu Zheng. "Performance Analysis of Auto-Control Adjustable Speed Asynchronous Disk Magnetic Coupling." Advanced Materials Research 199-200 (February 2011): 313–17. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.313.

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Auto-control adjustable speed asynchronous magnetic coupling was designed according to principles of electromagnetic induction. Its development can effectively solved the vibration leading to the damage of mechanical coupling and the surrounding parts caused by rigid mechanical coupling link, as well as realized motor soft starting by controlling output speed in different torques. Based on the above working requirement, a novel magnetic coupling structure suit for auto-control by PLC in this paper was created. The motive simulation analysis of body structure and the simulation of magnetic torque at different air-gap length were obtained separately by ADAMS and ANSOFT. The results showed that the structure of auto-control adjustable speed asynchronous disk magnetic coupling was reasonable in practical condition.

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36

George, Jobins, and B. Lethakumari. "Design and optimization of 2x2 corporate-series fed microstrip antenna array." International Journal of Engineering & Technology 7, no. 1.9 (March 1, 2018): 84. http://dx.doi.org/10.14419/ijet.v7i1.9.9739.

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The limitation of microstrip patch antenna is relatively low gain and narrow bandwidth. By using the microstrip patch antenna array antenna performance can be improved. In this paper design and stimulation of a 4 element rectangular microstrip patch array is described and the performance of antenna array is optimized by varying patch element dimensions. Antenna array is designed to operated at the frequency of 10 GHz. The corporate-series feed network is implemented for feeding patch elements. The 2x2 antenna array is implemented on FR4 substrate with 1.588mm thickness and dielectric constant of 4.4.The stimulation and performance analyze of antenna is done using Ansoft High frequency structure simulator software. Finally, comparison of antenna arraycharacteristics before and after optimization is presented.

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Cheng Lai, Wen, Lin Chuan Tsai, and Chia Wen Li. "Design of a Dual Band Coplanar Antenna for WiMax Applications." International Journal of Engineering & Technology 7, no. 3.32 (August 26, 2018): 11. http://dx.doi.org/10.14419/ijet.v7i3.32.18381.

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Ansoft HFSS electromagnetic simulation software was used in this study to simulate the design of two frequency band dual band coplanar antennas for WiMax (3.44GHz to 3.69GHz) and (5.25GHz to 5.85GHz) with center frequencies of 3.5GHz and 5.25GHz respectively. The steps of antenna design simulation are shown in figures of Return Loss, Current Distribution and 3D Radiation Pattern. Through continuous simulation, modification, and correction, the antenna can achieve the desired effect. Metal was used as the reflective material for the antenna designed, the antenna was covered by the material as a partition between the antenna and the metal, and FR4 was used as high-frequency circuit board (dielectric coefficient = 4.4). The simulation and measurement results were found to have consistent and good characteristics.

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38

Dong, Ting, Kun Liu, Li Fu Liu, and Ying Hua. "Application Reseach of Oriental Silicon Steel Sheet Used in the Table Motor." Advanced Materials Research 1095 (March 2015): 527–30. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.527.

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The tables used in multi-axis numerical control machine need quicker response ability and higher position precision, so their drive motors must have both high torque density and low torque ripple. In order to realize these requirements, based on the characteristics of the oriental silicon steel sheet which is usually used in the transformers, a similar number of poles and slots PM (permanent magnetic) motor with this material is researched and designed. The motor stator is combined with some single tooth which rolling direction is radical. Because of the excellent magnetic performance along the rolling direction, the proposed stator structure can increase the average torque and decrease the torque ripple. In the end, the finite element soft Ansoft is used to prove that the method is correct and effective.

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Wang, Xiao Yu, Jing Jing Wu, Zhen Yuan Jia, and Xiao Dong Tan. "Mechanical and Magnetic Analysis of Giant Magnetostrictive Transducer." Applied Mechanics and Materials 79 (July 2011): 166–71. http://dx.doi.org/10.4028/www.scientific.net/amm.79.166.

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The giant magnetostrictive transducer is a prospective kind of transducer for precession position and actuator utilization. The transducer design need cooperated with the mechanics, electrics and magnetics knowledge. It designs the giant magnetostrictive transducer and employed the finite element method to simulate and analysis the transducer’s prestress mechanism and modal analysis, Meanwhile, It uses the Ansoft software simulated and calculated the electrical and magnetical performance of the designed transducer. It presents the calculating method of the actuator’s mechanical, magnetic and thermal system, and utilizes the finite element method to analysis the actuator’s prestress mechanism, modal mode, permanent and electromagnetic magnetic circuit. The simulation results verified the design is reasonable and effective. The discussion of the model, analysis and simulation method of the transducer can direct the future transducer design and manufacture.

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Wang, Fei, Changhao Men, Xiangwei Kong, and Lingxiang Meng. "Optimum Design and Application Research of Eddy Current Sensor for Measurement of TBM Disc Cutter Wear." Sensors 19, no. 19 (September 29, 2019): 4230. http://dx.doi.org/10.3390/s19194230.

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In view of the fact that the mature eddy current sensors on the market have a small measuring range and a certain requirement for the measured conductor area, which cannot meet the requirement of TBM disc cutter Wear monitoring, Ansoft Maxwell simulation was used to optimize the coil geometry parameters and circuit structure of eddy current sensor in this study. A special sensor for measuring disc cutter wear was designed, and the feasibility of the design was verified by measuring a 17-inch disc cutter. The results indicate that the linear range of the eddy current sensor is 35 mm under the condition that the measured blade width is 19 mm, which can meet the requirement of disc cutter wear measurement and provide monitoring data for real-time disc cutter wear monitoring system.

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Priya, Anumuthu, S. Kaja Mohideen, and Manavalan Saravanan. "Design of Polarization Reconfigurable Patch Antenna for Wireless Communications." Applied Computational Electromagnetics Society 35, no. 8 (October 7, 2020): 893–98. http://dx.doi.org/10.47037/2020.aces.j.350807.

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A single fed circularly polarized reconfigurable patch antenna is proposed. The antenna consists of a radiating patch incorporated with an H-shaped slot at its center. Four ultra-miniature switches are used for polarization reconfiguration. The antenna is designed to operate at the center frequency of 2.357 GHz. The antenna achieves either left-hand polarization or right-hand polarization depending upon switching of corresponding switches. The antenna parameters are simulated using Ansoft high-frequency structure simulator and are validated using an Agilent network analyzer (N9925A) and antenna test systems. The antenna achieves a good impedance match of 120MHz between 2.26GHz – 2.38GHz band and achieves low cross-polarization isolation of -22.82 dB for RHCP and -21.77 dB for LHCP configurations at its operating frequency. The antenna finds application in areas of modern wireless communication.

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Cheng, Peng, Geng Wang, Peng Qin, and Feng Yan Li. "Design and Simulation Analysis of HTS Wind Generator." Applied Mechanics and Materials 312 (February 2013): 138–42. http://dx.doi.org/10.4028/www.scientific.net/amm.312.138.

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With the development of high temperature superconductor (HTS) material, countries all over the world have shown great attention in HTS generator over the theoretical research and application. In this paper, a 3MW high temperature superconductor wind generator has been designed by using the RM and Maxwell 2D module of FEM software Ansoft. This design use the second generation HTS material YBCO bulk to be the permanent magnet. It break through the capability limitation of the traditional permanent magnet generation. Based on the FEM simulating, calculating and changing the parameter, the data of the HTS wind generator has been shown, such as magnet line of force, magnetic-field distribution and so on. Compared with the traditional permanent magnet generation, the HTS wind generator has a strong superiority in various aspects.

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43

Bai, Hongfen, Jingwei Zhu, and Jungfeng Quin. "Performance Study of Three-Phase Fault-Tolerant Permanent Magnet Motor Drive for Marine Propulsion System Based on Structure Design." Journal of Ship Research 61, no. 01 (March 1, 2017): 23–34. http://dx.doi.org/10.5957/jsr.2017.61.1.23.

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The fault-tolerant permanent magnet motor (FTPMM) drives are desired in electric ship propulsion systems. The winding inductance, the sinusoidal degree of the back electromotive force (back-EMF) waveform, and the total harmonic distortion (THD) of the cogging torque are the important factors that affect the operating performance of FTPMM drive. A performance optimization of a three-phase FTPMM by varying motor structural parameters is presented in this article. By analyzing mathematical formulas, notch parameters and permanent magnet size are designed optimally to obtain large winding self-inductance, good sinusoidal degree of back-EMF, and low THD of cogging torque. The finite element verification in Ansoft proves selected parameters reasonable. Finally, an experimental prototype motor is specifically built according to determined parameters; and good performances, magnetic isolation, and fault-tolerant capacity can be guaranteed.

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Peng, Xiao, Yun Xiong Song, and Wan Tai Liu. "The Wound-Rotor Design and Finite Element Analysis of Wound-Rotor Brushless Double-Feed Motor." Advanced Materials Research 791-793 (September 2013): 813–17. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.813.

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In this paper, firstly the operation principle of the brushless double-fed motor is introduced. Secondly by means of the single-pole slot-number phase diagram, the rotor windings are designed and analyzed, and it is proved that the designed motor can assure the equality of the induced branch EMF and satisfy the demands of other electrical properties. Finally, on the basis of analyzing the design principle of the BDFM, the Ansoft/Maxwell is used to establish the model of doubly-fed brushless machine with the wound rotor, the 2-D transient electromagnetic fields of brushless doubly-fed machine (BDFM) is calculated by finite element method, the magnetic force line and air-gap magnetic field is got, and the air-gap magnetic fields is analyzed by the harmonic spectrum. After the analysis of the finite element, the design of the BDFM with wound rotor structure can be achieved in this paper, and it provides the foundation for the rotor structure design optimization of BDFM and it also provides guiding significance for the BDFM.

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Liu, Jun, Hanlin Yu, Linbo Mei, and Bo Han. "Development of a new type of automatic magnetic particle inspection wall-climbing robot." Advances in Mechanical Engineering 13, no. 9 (September 2021): 168781402110473. http://dx.doi.org/10.1177/16878140211047339.

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In the paper, a permanent magnet adsorption wall-climbing robot using magnetic particle detection technology for crack detection is introduced, which solves the problems of low efficiency of traditional manual detection and long detection time. According to the working environment of the detection system and the detection functions that need to be completed, the body structure of the robot is designed, the overall size of the robot is smaller than the distance between two steam turbine blades, so it can achieve the crack detection function of large steam turbine blades, and the stability and force analysis of the robot are carried out, and the adsorption conditions that meet the conditions of no sliding and overturning are obtained. In the paper, we use the magnetic circuit method to design a miniature excitation device for robotic applications and use the simulation software Ansoft-Maxwell to verify its feasibility. In the final experiment, it can be shown that the robot designed can achieve a series of functions such as magnetic particle inspection and image acquisition. There is a good prospect for the inspection of turbine blades.

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Wang, Lie Zhun, and Zi Qing Liu. "Green Design and Manufacturing of Premium Efficiency Motor." Applied Mechanics and Materials 456 (October 2013): 268–73. http://dx.doi.org/10.4028/www.scientific.net/amm.456.268.

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YE3 series of premium efficiency three-phase asynchronous motors adopt computer integrated system and anticipate the best optimized electrical design. In the structure design, airflow validity is analyzed by finite-element method (FEM) and the motors fan is designed optimally through experimental results; on the fan housing, the Ansoft finite-element method is used in analyzing the electromagnetic field , and designing optimally electromagnetic environment with the test results; the finite-element method is also used in analyzing the temperature field, connecting with the test results to optimize the ventilation structure. The radiating rib is metrical distribution and arrangement along the diameter of axle direction on the motor housing, following the principle of heat radiation and the principle of fluid mechanics, which can improve the ventilation and cooling effect. The design of the motor has reached the international advanced level.

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Floc'h, Jean-Marie, Ahmad El Sayed Ahmad, and Yvan Kokar. "Dual-Beam Antenna Design for Autonomous Sensor Network Applications." International Journal of Antennas and Propagation 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/289681.

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This paper describes our contribution in the ANR project called CAPNET dedicated to the site security (autonomous sensor network). The network is autonomous in term of energy and it is very easy to deploy on the site (the time to deploy each node of the network is around 10 minutes). The first demonstrator was deployed in the fire base station of Brest, France with 10 nodes with a security perimeter around 1.5 km. Our contribution takes place in the field of antennas, with the development of two systems: a single-beam antenna reserved for the supervisor or the last node of the network, and a dual-beam antenna dedicated to the node in linear configuration. For the design and optimization of antennas, we use HFSS CAD software from ANSOFT. The antennas have been designed and successfully measured.

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Kamil Naji, Maham, Alaa Desher Farhood, and Adnan Hussein Ali. "Novel design and analysis of RF MEMS shunt capacitive switch for radar and satellite communications." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 2 (August 1, 2019): 971. http://dx.doi.org/10.11591/ijeecs.v15.i2.pp971-978.

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In this paper, a new type of Radio Frequency Micro-Electro-Mechanical System (RF-MEMS) shunt capacitive switch is designed and studied. RF MEMS switch has a number of advantages in a modern telecommunication system such as low power consumption, easy to fabricate and power handling capacity at radio frequency. At high frequency applications, this switch shows very superior performance due to which it now became one of the key elements for RF application. In this proposed design, an innovative type of MEMS switch is designed. The MEMS switch structure consists of substrate, co-planar waveguide (CPW), dielectric material and a metallic bridge. The proposed MEMS switch has a dimension of 508 µm × 620 µm with a height of 500 µm. The substrate used is GaAs material. The relative permittivity of the substrate is 12.9. This proposed MEMS switch is designed and simulated in both UP (ON) state and DOWN (OFF) state. The proposed RF-MEMS switch is designed and simulated using Ansoft High frequency structure simulator (HFSS) electromagnetic simulator. The simulated result shows better performance parameters such as return loss ( <-10 dB) and insertion loss ( > -0.5 dB) in UP state, whereas return loss ( > -0.5 dB) and isolation (<-10 dB) in DOWN state. This switch has good isolation characteristics of – 43 dB at 27 GHz frequency.

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Hidayu Shahadan, Nor, Muhammad Ramlee Kamarudin, Mohd Haizal Jamaluddin, and Yoshihide Yamada. "Higher-order Mode Rectangular Dielectric Resonator Antenna for 5G Applications." Indonesian Journal of Electrical Engineering and Computer Science 5, no. 3 (March 1, 2017): 584. http://dx.doi.org/10.11591/ijeecs.v5.i3.pp584-592.

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The excitation of the higher-order mode, in rectangular dielectric resonator designed was explored to enhance the antenna gain and detailed elaboration is presented in this paper. The antenna was fed by a 50Ω microstrip line through an aperture cut in the ground plane. Besides avoiding spurious radiation, this feeding technique gives flexibility in controlling the amount of coupling in order to reduce the Q-factor in the higher-order mode RDRA. A design was developed and subsequently simulated using Ansoft HFSS ver 16.0 by utilizing Duroid 5880 dielectric substrate with a thickness (ts) of 0.254 mm, a permittivity (εs) of 2.2 and a loss tangent (δ) of 0.001 at 15 GHz. The higher-order mode, RDRA achieved the measured gain at 9.76 dBi and the measured impedance bandwidth as much 2.5 GHz which is 4.7% more compared to the fundamental mode. The result should be considered suitable for 5G applications.

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Zhang, Guang Cai, Hong Fu Ai, Ya Jie Xu, Qiao Yan Chen, and Xiao Dong Yang. "The Design of Small H-Style Permanent Magnet Used for NMR." Applied Mechanics and Materials 703 (December 2014): 114–18. http://dx.doi.org/10.4028/www.scientific.net/amm.703.114.

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This paper introduces the design of permanent magnet that can been used to small nuclear magnetic resonance (NMR) system, and its static magnetic field simulation analysis uses Ansoft's Maxwell software. According to the theory of magnetic circuit design and the performance requirements of magnetic field, An H-style permanent magnetic actuator has been designed, and it can generate uniform magnetic field larger than 0.4 T in the interested region of this actuator. The static magnetic field simulation analysis of this permanent magnetic actuator has done by Ansoft's Maxwell 3D software, and the experimental results show that the design of permanent magnet can meet the requirements.

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