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Journal articles on the topic 'Ansoft HFSS'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 June 2025

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1

Yu, Yan Xin, Chun Yang Wang, Yan Jun Sun, and Wen Ting Jiang. "Study on Analysis and Simulation of Novel Frequency Selective Surfaces." Advanced Materials Research 1049-1050 (October 2014): 790–93. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.790.

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Frequency selective surface (FSS) is a two-dimensional periodic structure. It exhibits total reflection and transmission in the neighborhood of the element resonances. As it performs as a filter, FSS is widely used in the fields of microwave and optics. In this paper, the finite element method is used to analysis frequency selective surface and study on the feasibility of Ansoft HFSS software for frequency selective surface simulation. Hexagonal element of frequency selective surface is as an example to explore the simulation method and the process of Ansoft HFSS. Through the comparison of the simulation curves and the measured curves of hexagonal element frequency selective surface film by photoetching technology, the simulation method of Ansoft HFSS software for frequency selective surface is correct. At the same time, this paper further verified the reliability of the simulation through the example of the ring and the cross unit structure.

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2

Herschmann, R., M. Camp, and H. Eul. "Extended post processing for simulation results of FEM synthesized UHF-RFID transponder antennas." Advances in Radio Science 5 (June 12, 2007): 127–33. http://dx.doi.org/10.5194/ars-5-127-2007.

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Abstract. The computer aided design process of sophisticated UHF-RFID transponder antennas requires the application of reliable simulation software. This paper describes a Matlab implemented extension of the post processor capabilities of the commercially available three dimensional field simulation programme Ansoft HFSS to compute an accurate solution of the antenna's surface current distribution. The accuracy of the simulated surface currents, which are physically related to the impedance at the feeding point of the antenna, depends on the convergence of the electromagnetic fields inside the simulation volume. The introduced method estimates the overall quality of the simulation results by combining the surface currents with the electromagnetic fields extracted from the field solution of Ansoft HFSS.

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3

Abdulhamid, Mohanad, and Eugene Ochieng. "Review Design of Slot Antenna Based on Ansoft HFSS Software." Technological Engineering 16, no. 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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4

Hrebelia, R. E., V. I. Slyusar та I. I. Sliusar. "ДОСЛІДЖЕННЯ ВПЛИВУ ПЕРЕКРИТТЯ ЕЛЕМЕНТІВ ДІЕЛЕКТРИЧНИХ РЕЗОНАТОРНИХ АНТЕН НА ОСНОВІ УСІЧЕНОГО КОНУСУ". Системи управління, навігації та зв’язку. Збірник наукових праць 2, № 48 (2018): 142–48. http://dx.doi.org/10.26906/sunz.2018.2.142.

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Розглянуто характеристики квазіфрактальних діелектричних резонаторних антен (ДРА) на основі усіченого конусу в залежності від глибини перекриття їх елементів. При цьому досліджені два варіанти антен: більшим діаметром вгору та більшим діаметром до низу. Оцінка та порівняння антен здійснювалися за такими парламентами: амплітудно-частотна характеристика, діаграма спрямованості та коефіцієнт стоячої хвилі. Оцінка зазначених параметрів проводилася за допомогою пакету програм Ansoft HFSS.

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5

Liu, Long, Yong Li, and Shen Ke Zhang. "Design of a Wide-Band Double-Ridged Standard Horn Antenna." Applied Mechanics and Materials 687-691 (November 2014): 4019–23. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.4019.

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This paper will present a novel wide-band double-ridged standard horn antenna at 0.5~6GHz with the software named Ansoft HFSS, which is mainly used for far-field antenna measurement system. A simulation model of wide-band double-ridged horn antenna and the detailed design of each part of the structure will be given. With optimization in HFSS, the results show that the VSWR in the whole frequency band is below 2.4 and average gain larger than 6 dB. Finally, results of the measurement for VSWR, gain and radiation pattern are presented and discussed, which indicates that the built prototype is consistent with the design goals very well.

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6

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 (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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7

Semenov, V. N., V. I. Slyusar та I. I. Sliusar. "КВАЗІФРАКТАЛЬНА ДІЕЛЕКТРИЧНА РЕЗОНАТОРНА АНТЕНА НА ОСНОВІ ПАРАЛЕЛЕПІПЕДА". Системи управління, навігації та зв’язку. Збірник наукових праць 2, № 48 (2018): 167–71. http://dx.doi.org/10.26906/sunz.2018.2.167.

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В роботі наведено пропозиції щодо реалізації діелектричних резонаторних антен на основі квазіфрактальних структур, що характеризуються відсутністю рекурсивного повторення. В якості базового елемента запропоновано використання паралелепіпеда. З метою визначення впливу геометрії на просторовочастотні характеристики антени проведено моделювання за допомогою пакету електродинамічного моделювання Ansoft HFSS. На основі введених допущень досліджувались амплітудна частотна характеристика та коефіцієнт стоячої хвилі. На основі аналізу моделей геометрії антени визначені оптимальні варіанти компоновки центрального та периферійних елементів.

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8

Chen, Ping Cheng, Chung Long Pan, Y. C. Qiu, and G. P. Jhuan. "A Design of Microstrip Line Filter Using the Semicircle Defected Ground Structure." Applied Mechanics and Materials 799-800 (October 2015): 1217–21. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.1217.

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A design and simulation for microstrip line filter with semicircle defected ground structure has been researched. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different parameters such as dimensions, amounts of SDGS.The results show good performance of SDGS in high cut-off frequency, erase of harmonic frequency, smaller dimension. Final, a filter with4.4GHz center frequency,high Q-factor had been design and fabricated.

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9

Chen, Ping Cheng, Chung Long Pan, T. Y. Lai, and T. U. Lin. "Design of a 2.4GHz-Microstrip Line Filter Using the Semicircle Defected Ground Structure." Applied Mechanics and Materials 876 (February 2018): 105–9. http://dx.doi.org/10.4028/www.scientific.net/amm.876.105.

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A design and simulation for L-shaped slot microstrip line antenna with semicircle defected ground structure has been researched, the main purpose is suppressing the existence of higher order harmonic. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different parameters such as dimensions, amounts of SDGS. The results show good performance of SDGS in higher resonant frequency suppression. Final, an antenna with 2.4GHz center frequency had been design and fabricated.

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10

Chi, Yao Dan, Hai Long Gu, Yin Han Gao, Xiao Tian Yang, and Sheng Qian Zhang. "Survey to Automobile Electromagnetic Compatibility Simulation Software." Applied Mechanics and Materials 220-223 (November 2012): 2968–72. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.2968.

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With the rapid developments of computer technology and computing electromagnetism, it is possible to simulate the electromagnetic compatibility of automobiles. At the beginning of the design, electromagnetic compatibility simulation analysis of automobiles can not only shorten the research cycle, but also reduce the cost. In this paper, we summarized the current commercial electromagnetic compatibility simulation analysis software, analyzed the features and applied algorithms of each software, and gave the simulation examples of Ansoft HFSS and FEKO.

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11

Yang, Le, and Xiao Ping Liao. "Effects of Packaging on RF MEMS Switch’s Return Loss." Advanced Materials Research 60-61 (January 2009): 94–98. http://dx.doi.org/10.4028/www.scientific.net/amr.60-61.94.

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Packaging of MEMS has been identified as one of the most significant areas of research for enabling MEMS usage in product applications. In order to make MEMS a real-life opportunity, it is vital to explore and develop an understanding of the possibilities and limitations of MEMS packaging. This paper presents several packaging structures for RF MEMS switch which based on GaAs substrate. The return loss of X-band RF MEMS switch before and after packaged can be simulated by Ansoft HFSS. The results show that return loss of RF MEMS switch after packaging deteriorated at least 3dB compared with that of before. Thermal mismatch caused by the variation of the temperature in the packaging process will introduce additional thermo-elastic strain and geometric deformation into the mechanical structure. The influence on return loss of the RF MEMS switch is researched in this paper too. Considering that, return loss simulated by HFSS decreases from -16.38dB to -16.88dB. Then, some design guidelines of RF MEMS packaging derived from the simulation of HFSS are also concluded at the end of the article.

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12

Mishra, Ranjan, Raj Gaurav Mishra, and R. K. Chaurasia. "Design of a Dual Band Rectangular Microstrip Antenna." International Journal of Mathematical, Engineering and Management Sciences 3, no. 4 (2018): 438–43. http://dx.doi.org/10.33889/ijmems.2018.3.4-031.

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The objective of the paper is to design and investigate a rectangular microstrip antenna that covers the band from 2.4 to 3.6 GHz. The proposition consolidates investigation of fundamentals of microstrip patch antenna. A progression of simulation in Ansoft HFSS (High Frequency System Simulation) has been carried out to discover the dual operating frequency. The qualities of the patch antenna rely on its different geometrical parameters. The investigation is carried in terms of two prime factors: Return loss and radiation pattern.

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13

Mohammadi, M. "Modal Analysis of Directional Coupler and Its Equivalent Circuit." Advanced Electromagnetics 8, no. 4 (2019): 103–7. http://dx.doi.org/10.7716/aem.v8i4.1252.

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A modal analysis for the directional coupler is presented in this paper. The analysis is based on the mode-matching technique. The theory is verified by Ansoft HFSS software at a directional coupler with standard X-band (WR 90) rectangular waveguide ports. Element values of equivalent circuit model are computed by using the S-parameters obtained from the presented method in this paper. In addition this paper has corrected two formulations used in two previous works which have been published.

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14

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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15

Dong, Ya Zhou, Shi Wei Dong, Zhong Bo Zhu, and Ying Wang. "Ka Band Transition between Rectangular Waveguide and Substrate Integrated Waveguide." Advanced Materials Research 443-444 (January 2012): 362–65. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.362.

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This paper presents novel designs of Ka band transitions between standard rectangular waveguide and substrate integrated waveguide (SIW). The proposed transitions can provide simultaneous field and impedance matching. The transition with a height-tapered waveguide exhibits outstanding low-loss performance over an ultra-wideband range (entire Ka-band). And the other one with Chebyshev transformers has a compact profile and low loss better than 2dB in a bandwidth of 11GHz at Ka band. The simulation and analysis of the transitions are carried out with Ansoft HFSS.

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16

Deffenbaugh, Paul, Kenneth Church, Josh Goldfarb, and Xudong Chen. "Fully 3D Printed 2.4 GHz Bluetooth/Wi-Fi Antenna." International Symposium on Microelectronics 2013, no. 1 (2013): 000914–20. http://dx.doi.org/10.4071/isom-2013-thp53.

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3D printing and printed electronics are combined to demonstrate the feasibility of printing electrically functional RF devices. A combined process is used to demonstrate the feasibility of fabricating a 2.4 GHz antenna in a fully-3D printed object. Both dielectric, which also serves as the structure, and conductors are printed. Full-wave models are generated using Ansoft HFSS. Real-world tests using a Class 1 “100 m” Bluetooth module are conducted and compared against the performance of an industry-standard quarter wavelength monopole antenna.

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Guo, Hong Fu, Mi Fu, Jin Feng Tang, and Cai Xiang Xu. "A Study of the Effect of Absorbing Materials in the UHF Sensor." Advanced Materials Research 542-543 (June 2012): 765–68. http://dx.doi.org/10.4028/www.scientific.net/amr.542-543.765.

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An ultra high frequency (UHF) sensor antenna with metallic shell for PD detection has been proposed and experimentally studied in this article. The impedance bandwidth of the proposed phantom is considerably improved when the metallic shell is filled with radiation absorbing material, which is based on the simulation results by Ansoft HFSS. When the height of the RAM reaches 3 cm, the proposed antenna obtains a bandwidth from 800 MHz to over 1.7 GHz with VSWR<2.7, within which can effectively detect the PD signals.

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18

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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Chen, Ping Cheng, Chung Long Pan, J. D. Huang, and S. H. Hong. "Design of an Ideal Low Pass Microstrip Line Filter Using the Defected Ground Structure." Applied Mechanics and Materials 876 (February 2018): 133–37. http://dx.doi.org/10.4028/www.scientific.net/amm.876.133.

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A design and simulation for low pass microstrip line filter with defected ground structure has been researched, the main purpose is with the simplest method to design an ideal low pass filter. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different geometric shape of DGS. The results show good performance of a low pass filter with DGS. Final, a low pass filter with DGS design and fabricated, The properties are shown as flow: center-frequency: 7.28G, S21:-47dB, cut-off frequency: 5.88GHz.

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20

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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21

Haynes, Mark, John Stang, and Mahta Moghaddam. "Microwave Breast Imaging System Prototype with Integrated Numerical Characterization." International Journal of Biomedical Imaging 2012 (2012): 1–18. http://dx.doi.org/10.1155/2012/706365.

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The increasing number of experimental microwave breast imaging systems and the need to properly model them have motivated our development of an integrated numerical characterization technique. We use Ansoft HFSS and a formalism we developed previously to numerically characterize anS-parameter- based breast imaging system and link it to an inverse scattering algorithm. We show successful reconstructions of simple test objects using synthetic and experimental data. We demonstrate the sensitivity of image reconstructions to knowledge of the background dielectric properties and show the limits of the current model.

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22

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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23

Deng, Zhong Liang, Man Zu Hong, and Yi Dong Yao. "Ka-Band Wideband Pattern Reconfigurable Microstrip Patch Antenna with RF MEMS Switches." Applied Mechanics and Materials 39 (November 2010): 146–50. http://dx.doi.org/10.4028/www.scientific.net/amm.39.146.

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A Ka-band microstip patch antenna with the functions of switchable pattern is presented. The antenna structure is composed of three rectangular patches and four radio frequency microelectro-mechanical system (RF MEMS) switches. The switches are placed to connect the center patch with other two ones, with two switches on the top edge of the center patch and others on the bottom edge. By controlling the states of the RF MEMS switches, the proposed antenna can radiate two patterns. Moreover, the switchable functions are operated at the same frequency band with a bandwidth of 30.9%. Simulated results by Ansoft HFSS are given.

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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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Sharma, Karishma, Dharmendra K. Upadhyay, and Harish Parthasarathy. "Perturbation theory-based field analysis of arbitrary-shaped microstrip patch antenna." International Journal of Microwave and Wireless Technologies 9, no. 8 (2017): 1713–23. http://dx.doi.org/10.1017/s1759078717000368.

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In this paper, the concept of perturbation theory is applied to derive a general electric field (E-field) expression for any arbitrary-shaped microstrip patch antenna. The arbitrary shape is created by adding small perturbation in a regular patch shape, which is used to find perturbed and unperturbed electromagnetic wave solutions for resultant E-field of patch antenna. Ansoft HFSS simulator is used to validate the derived field expression in curvilinear coordinates for a regular circular-shaped patch. Then the proposed field analysis is applied to develop two new arbitrary-shaped patches in C-band for desired E-field patterns.

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Deng, Zhong Liang, Man Zu Hong, and Yi Dong Yao. "Miniature Circularly Polarized Microstrip Patch Antenna with Rectangular Slots for GPS Application." Applied Mechanics and Materials 148-149 (December 2011): 149–52. http://dx.doi.org/10.4028/www.scientific.net/amm.148-149.149.

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A miniature circularly polarized (CP) microstrip patch antenna with rectangular slots for GPS application is presented. The antenna structure is composed of a square radiating patch and two rectangular slots. The two rectangular slots are incorporated to obtain CP characteristic, with one slot on the lower left corner of the square patch and the other on the upper right corner. By adjusting the dimensions and positions of the slots, the proposed antenna can exhibit CP radiation. Moreover, miniature properties are achieved by the use of very high permittivity substrate material. Simulated results by Ansoft HFSS are given.

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Rajni, Rajni, Gursharan Kaur, and Anupma Marwaha. "Metamaterial Inspired Patch Antenna for ISM Band by Adding Single-Layer Complementary Split Ring Resonators." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 6 (2015): 1328. http://dx.doi.org/10.11591/ijece.v5i6.pp1328-1335.

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In this work, we propose the design of metamaterial inspired compact circular patch antennas loaded with complementary split-ring resonators (CSRRs) for ISM band operation. CSRRs have been incorporated horizontally inside the dielectric. The various models of CSRR loaded antennas with different patch radius are produced and are evaluated numerically with Ansoft HFSS software. The results of the suggested antenna designs are presented that reveal a comparable impedance match and radiation characteristics with those of a normal patch antenna without CSRR. The proposed antennas yield high levels of miniaturization and similar performance to the conventional patch antenna at the 2.45GHz.

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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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S. Mohan Reddy, S., M. Vinod Kumar, B. Sanjay, and K. Aruna Kumari. "Comparative Analysis of Edge Feeding and coaxial Feeding Technique with Fixed Frequency." International Journal of Engineering & Technology 7, no. 2.7 (2018): 848. http://dx.doi.org/10.14419/ijet.v7i2.7.11080.

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The performance of rectangular microstrip patch antenna with the edge feeding and coaxial feeding techniques with DGS (Defective ground structure) and DSS (Defective substrate structure) are analyzed. It was observed that the return loss for Edge feeding is -28.39dB, for DSS it is - 26.44 and return loss for coaxial with DGS is -27.50dB and for DSS is -28.52. VSWR is approximately equal to 1 for all designs and also it was observed that the Gain is enhancement in Edge feeding and Bandwidth is improvement with coaxial feeding. The antenna designing and simulation is done by using the ANSOFT HFSS Software.

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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 (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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Pevneva, N. A., A. A. Kopshai, and A. L. Gurskii. "Simulation of electromagnetic field distribution in the measuring cell for determining the dielectric permittivity of materials at microwave frequencies." Doklady BGUIR 18, no. 6 (2020): 75–80. http://dx.doi.org/10.35596/1729-7648-2020-18-6-75-80.

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To determine the dielectric permittivity of materials in a wide frequency range with the automation of measurements and the necessary accuracy, measuring cells have been created to ensure the simplicity of the design of the waveguide path. In order to obtain information about the suitability of measuring cells based on irregular SHF waveguides for estimation of dielectric parameters of materials, we simulated the structure of electromagnetic field in the system consisting of two irregular waveguides and waveguide chamber placed between them using a three-dimensional electrodynamic simulation in Ansoft HFSS package environment. The distribution of the electric field was simulated when an empty polyethylene tube, a rod of fluoroplastic and a rod of textolite are placed in the measuring cell. It was demonstrated that high order modes fade out in irregular waveguide and do not affect the precision of obtained results, and significant edge effects were not detected. It allows one to utilize measuring cells based on irregular waveguides together with a scalar or vector network analyzer and using the partial filling of the waveguide method or the modified Nicholson – Ross – Weir method for measurements of dielectric permittivity  of materials. The results of modeling the dependence of the amplitude and phase of the reflection coefficient of the textolite and fluoroplastic on the frequency in Ansoft HFSS environment are given. The simulation results are compared with the results obtained experimentally. The frequency dependencies of  were obtained experimentally for test materials – textolite and fluoroplastic – in the frequency range of 25,95–37,50 GHz. The experimental data are in satisfactory agreement with the results of theoretical calculations and do not go beyond the boundaries specified by the measurement uncertainty.

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32

Jones, M., and S. Ortiz. "Comments on "Scan impedance for an infinite dipole array: Hansen's formulas compared with Ansoft HFSS simulations"." IEEE Antennas and Propagation Magazine 50, no. 1 (2008): 188–91. http://dx.doi.org/10.1109/map.2008.4494537.

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Aroor, Supreetha, and Rashaunda Henderson. "Millimeter-Wave Frequency Performance of Conductor-Backed Coplanar Waveguide on FR408 Packaging Material." Journal of Microelectronics and Electronic Packaging 9, no. 4 (2012): 166–70. http://dx.doi.org/10.4071/imaps.351.

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This work demonstrates the performance of conductor-backed coplanar waveguide (CBCPW) lines on FR408 for millimeter-wave applications. These lines can be used as interconnects to integrate a CMOS IC with an antenna fabricated on FR408 for a low-cost system-in-package solution. To our knowledge, this is the first time coplanar lines on FR4 have been studied for millimeter-wave applications. Ansoft HFSS simulation results for 50 Ω coplanar lines show a return loss of 20 dB and an insertion loss of 0.5 dB/mm at 100 GHz. Measured results up to 67 GHz show that on average, the CBCPW lines have an attenuation constant of 0.22 dB/mm.

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Yu, Zhen, Xiao Ying Ran, and Jian Guo Yu. "Design of a Wedge-Angle Log-Periodic Antenna." Applied Mechanics and Materials 719-720 (January 2015): 680–86. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.680.

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A wideband wedge-angle microstrip patch log-periodic antenna with 16 units operates at the center frequency 2.45GHz, is presented in this paper. Design an antenna interactive calculator with Visual Basic software to calculate and to adjust antenna parameters conveniently. Then, construct, simulate, and optimize the antenna model by use of Ansoft HFSS software. The patch log-periodic dipole antenna (LPDA) is tested by PNA3621 vector network analyzer. Measurement results show that the antenna has good characteristics with symmetrical radiation pattern, broad bandwidth, little number of side lobes, and voltage standing wave ratio with echo loss are relatively ideal in 2GHz~3.2GHz frequency range, which agree well with the simulation results.

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35

Shahadan, Nor Hidayu, Muhammad Ramlee Kamarudin, Noor Ainniesafina Zainal, Jamal Nasir, Mohsen Khalily, and Mohd Haizal Jamaluddin. "Investigation on Feeding Techniques for Rectangular Dielectric Resonator Antenna in Higher-Order Mode for 5G Applications." Applied Mechanics and Materials 781 (August 2015): 41–44. http://dx.doi.org/10.4028/www.scientific.net/amm.781.41.

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This paper presents the investigation on rectangular dielectric resonator antenna (RDRA) using three different feeding techniques that are microstrip slot aperture (MSA), microstrip line (ML) and open-end coplanar waveguide (OECPW). In order to increase the RDRA size and gain for 5G applications, the higher-order mode was used to excite the RDRA at the frequency resonant 28 GHz. Duroid dielectric substrate was used with a thickness of 0.254 mm, a permittivity of 2.2 and a loss tangent of 0.0009. Verification of the comparison was done by simulation using Ansoft HFSS. The simulated result for reflection coefficients, bandwidth, gain, radiation pattern and E-field strength was analyzed and compared.

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Gao, Ming Hua. "A Design of Ultrawide Band Planar Monopole Antenna Based on Microstrip Pentagonal Patch." Advanced Materials Research 108-111 (May 2010): 915–20. http://dx.doi.org/10.4028/www.scientific.net/amr.108-111.915.

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An ultra-wide band planar monopole antenna is presented in this paper. This antenna uses a pentagonal patch as radiation unit and is fed by a microstrip line. The relevant simulation is performed by using Ansoft HFSS. The return loss curve and the radiation patterns of this new antenna are given. And the effect of the size of the various parts of the antenna on the reflection loss is analyzed. Experimental results show that the proposed antenna provides an ultra-wide bandwidth (1.70~12.90 GHz) for return loss less than -10dB (VSWR<2). It is suitable for current ultra-wide band communication systems.

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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 (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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Singh, Inder P., and Praveen Bhatt. "Compact Ultra-wide-band Bandpass Filter using Square Complimentary Split Ring Resonator." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 5 (2020): 689–94. http://dx.doi.org/10.2174/2352096512666190912125458.

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Background: In this paper, an ultra-wide-band bandpass filter with large stopband using interdigital coupled lines and pair of Square Complimentary Split Ring Resonator (SCSRR) is proposed. Methods: Interdigital coupled lines give bandpass characteristics and pair of SCSRR provides tuning of cut off frequencies and transmission zeroes on both side of the passband. In the passband, two transmission poles are achieved. The tightly coupled structure provides a wide stopband and sharp skirt response. Results: Dielectric constant 2.6 and its thickness of 0.787 mm is used to implement the design. Centre frequency of the proposed design is 5.1 GHz. Bandwidth at -3 dB is 3.5 GHz to 6.5 GHz. Conclusion: The proposed structure is simulated in Ansoft HFSS.

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Singh, Anil Kumar, Ravi Kumar Gangwar, and Binod K. Kanaujia. "Wideband and compact slot loaded annular ring microstrip antenna using L-probe proximity-feed for wireless communications." International Journal of Microwave and Wireless Technologies 8, no. 7 (2015): 1085–93. http://dx.doi.org/10.1017/s1759078715000446.

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A wideband orthogonally slot cut annular ring microstrip antenna fed by L-shaped probe is investigated using modal expansion cavity model and circuit theory approach. Simulation of the proposed antenna is performed using Ansoft HFSS and simulated results are compared with the measured and theoretical results. The impedance bandwidth of about 37.46% is observed at resonant frequency 3.15 GHz. The proposed antenna realizes an improvement in bandwidth of 13.46% and miniaturization in physical dimension about 10% from earlier reported structures. An improvement in bandwidth and miniaturization is due to thick substrate, L-probe feed, and orthogonally loaded slots. The measured results of fabricated antennas are in good agreement with simulated and theoretical results.

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Rudys, S., M. Ivanov, and J. Banys. "Ansoft HFSS Software Application for the Dielectric and Magnetic Measurements of Ferroelectrics and Related Materials in Microwaves." Ferroelectrics 430, no. 1 (2012): 115–22. http://dx.doi.org/10.1080/00150193.2012.677732.

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41

Davidson, David, Sergey Makarov, and Angelo Puzella. "EM Programmer's Notebook - Scan Impedance for An Infinite Dipole Array: Hansen's Formulas Compared with Ansoft HFSS Simulations." IEEE Antennas and Propagation Magazine 49, no. 4 (2007): 143–56. http://dx.doi.org/10.1109/map.2007.4385615.

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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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Liang, Yong Chun, Zhao Long Qiao, Zhi Peng Ge, and Teng Jiao Feng. "Design of Broadband Planar Spiral Antenna for Partial Discharge in Cable." Advanced Materials Research 816-817 (September 2013): 443–45. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.443.

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The detection of partial discharge in power cables is an effective method to diagnosis early fault of XLPE cable . When partial discharge occurs, it emits abundant frequency component in ultra-high frequency (UHF) band, and broadband planar spiral antenna is an effective sensor to detect UHF partial discharge signals. High frequency electromagnetic simulation software Ansoft HFSS is used to simulate and analysis planar Equiangular spiral antenna and Archimedean spiral antenna. The simulation results show that the two kinds of antennas work effectively in 400 MHZ ~ 1 GHZ frequency band and are high sensitivity and superior performance. Because of with smaller size and larger gain, the Archimedean spiral antenna is used to detect UHF signals of partial discharge in XLPE cable.

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Chaurasia, Praveen, Binod Kumar Kanaujia, Santanu Dwari, and Mukesh Kumar Khandelwal. "Penta-band microstrip patch antenna with small frequency ratios using metamaterial for wireless applications." International Journal of Microwave and Wireless Technologies 10, no. 8 (2018): 968–77. http://dx.doi.org/10.1017/s1759078718000570.

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AbstractA novel shape penta-band microstrip patch antenna is presented in this paper. The proposed antenna shows five operating frequencies and can be used for various wireless applications, i.e. 2.58 GHz for non-direct line of sight, wireless Internet service providers, and compatible with Navini Networks; 3.17 and 3.42 GHz for WiMAX; 4 GHz for C-band application such as weather radar systems; and 5.3 GHz for higher WLAN. Very small frequency ratios of the values 1.2286, 1.078, 1.169, and 1.325 are achieved between two consecutive resonant frequencies. Antenna design techniques for achieving five bands are presented and discussed step by step. The analysis is done by Ansoft HFSS v.15, and results are verified with experimental results of fabricated prototypes.

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45

Xu, Yan, He Xu, Yu Kun Luan, X. Z. Gao, and Kai Xue. "Radiation Characteristics of Heat Sink in Propulsive Wheel of Mobile Robots." Applied Mechanics and Materials 494-495 (February 2014): 1294–97. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1294.

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Electromagnetic interference easily appears in the propulsive wheel - a key component of the mobile robots, because internal space of propulsive wheel is very small, there are numerous electronic devices, and signal communication is complex. So electromagnetic shielding is very important for the propulsive wheel. In this paper, a wheel model and an equivalent source model of electromagnetic interference of the wheel were developed based on considerations of the internal electromagnetic properties. At the same time, a secondary source of electromagnetic interference is formed by heat sink. Hence, shielding effectiveness is taken as one of the evaluation criteria for the Electro-Magnetic Compatibility (EMC) problem, and the Genetic Algorithm (GA) in the software Ansoft HFSS platform was used to optimize the first resonance frequency of heat sink.

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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 (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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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 (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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48

Makarov, S. N., and A. Puzella. "Authors' response (Comments on "Scan impedance for an infinite dipole array: Hansen's formulas compared with Ansoft HFSS simulations")." IEEE Antennas and Propagation Magazine 50, no. 1 (2008): 191. http://dx.doi.org/10.1109/map.2008.4656679.

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49

Xue, Yi, Xie, Wan, and Ding. "A Displacement Sensor Based on a Normal Mode Helical Antenna." Sensors 19, no. 17 (2019): 3767. http://dx.doi.org/10.3390/s19173767.

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This paper presents a passive displacement sensor based on a normal mode helical antenna. The sensor consists of an external helical antenna and an inserting dielectric rod. First, the perturbation theory is adopted to demonstrate that both the electric intensity and magnetic intensity have a noticeable gradient change within the in-and-out entrance of the helical antenna, which will cause the sensor to experience a resonant frequency shift. This phenomenon was further verified by numerical simulation using the Ansoft high frequency structure simulator (HFSS), and results show the linear correlation between the retrieved resonant frequency and the displacement. Two sets of proposed sensors were fabricated. The experiments validated that the resonant frequency shifts are linearly proportional to the applied displacement, and the sensing range can be adjusted to accommodate the user’s needs.

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Gangwar, Ravi Kumar, Pinku Ranjan, and Abhishek Aigal. "Wideband four-element two-segment triangular dielectric resonator antenna with monopole-like radiation." International Journal of Microwave and Wireless Technologies 9, no. 2 (2015): 411–18. http://dx.doi.org/10.1017/s1759078715001622.

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In this paper, a wideband two-segmented four-element triangular dielectric resonator antenna (TDRA) with coaxial probe feed has been proposed. The proposed antenna has been analyzed, optimized, and studied through Ansoft HFSS simulation software. The prototype of the proposed antenna has been fabricated and its input characteristics are measured with the help of R&S Vector Network Analyzer. Good agreement has been obtained between simulated and measured results. The proposed design has been compared with two segments TDRA and found wider bandwidth with lower resonant frequency. The proposed antenna provides monopole-like radiation pattern over the entire bandwidth with nearly 33% bandwidth (return loss ≥10 dB) at a resonant frequency 6.9 GHz and 4.93 dBi peak gain. The proposed antenna is suitable for application of C-band microwave frequencies.

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