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Design of Cross-Shaped CPW-Fed Ultrawideband Slot Antenna
摘要： A new design of ultrawideband (UWB) antenna of coplanar waveguide (CPW)-fed is proposed. The antenna is composed of a cross-shaped patch and house-shaped slot with the minimum dimension of 21 mm × 20 mm × 1.6 mm. The analysis of S11, VSWR, radiation pattern and surface current is discussed with HFSS simulation software, and also the effect of parameters is presented. Experimental results show that the bandwidth of the antenna covers 110.67% (3.3—11.6 GHz) of UWB range with return loss better than 10 dB. And the good impedance matching in frequency band confirms the antenna is a good candidate for the application of wireless system.
关键词： return loss,ultrawideband (UWB),coplanar waveguide,HFSS
更新于2025-09-23 15:23:52
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Performance analysis of bandwidth and gain improvement of printed wide slot antenna using parasitic patch
摘要： Here, a printed micro strip line fed wide slot antenna with rotated square slot resonator is presented. This article deals with design, modeling and simulation of slotted antenna. A parasitic patch is introduced to improve the gain along with the bandwidth. For bandwidth enhancement, a slotted approach is used in ground of antenna along with rotation in patch and a simple 50 ? microstrip line fed is used to excite the slot in the antenna. The proposed antenna exhibits the return loss (S11) below -10 dB for the frequency mentioned and the effects of design antenna parameters such as slot width and patch width have been investigated. Results shows that a good amount of bandwidth (approximately 3 GHz) and gain (approximately 8 dB) is achieved ranging from 2.23 to 5.4 GHz which shows its application in world interoperability for microwave access (WIMAX) and wireless local area network (WLAN) bands.
关键词： microstrip patch antenna (MSA),parasitic patch,wide-slot antenna,High frequency structure simulator (HFSS)
更新于2025-09-09 09:28:46
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ANALYSIS AND DESIGN OF RECTANGULAR UNIAXIAL AND BIAXIAL ANISOTROPIC DIELECTRIC RESONATOR ANTENNAS
摘要： An anisotropic dielectric resonator antenna (ADRA) with uniaxial and biaxial permittivity tensors is characterized by using the dielectric waveguide model. An approximate formula for the Q factor of ADRA is derived. Then, it is shown that by certain conditions a wideband ADRA can be designed. Samples of simulation results are shown to demonstrate the capabilities of the proposed anisotropic technique for enhancing the bandwidth of ADRA. The proposed antenna is simulated by two full wave packages, Ansoft HFSS and CST Microwave Studio, and a good agreement is observed among the results.
关键词： anisotropic dielectric resonator antenna,simulation,dielectric waveguide model,permittivity tensors,CST Microwave Studio,wideband,biaxial,Ansoft HFSS,Q factor,uniaxial
更新于2025-09-04 15:30:14
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[Lecture Notes in Electrical Engineering] Recent Trends in Communication, Computing, and Electronics Volume 524 (Select Proceedings of IC3E 2018) || Study the Effect of Ground on Circular Loop Patch Antenna (CLPA)
摘要： This proposed article presents multiband circular ring loop patch antenna (CLPA). The design is simulated using HFSS tool and studied by varying the ground patch size (area). The substrate material FR-4 is used and studied for the frequency range from 1 to 30 GHz in the proposed article. After analysing the effect of change in ground (GND), it is found that multiband characteristics slightly change in terms of S11 (dB) parameter below 20 GHz and above 20 GHz bandwidth increases. The CLPA shows eight to ten resonating frequency bands. Simulated data show ?40.98 (dB) re?ection coef?cient at the frequency 15.88 GHz in design 1; similarly, design 2, design 3, design 4, design 5, and design 6 obtain maximum re?ection coef?cient ?33.76 (dB) at 10.70 GHz, ?37.27 (dB) at 27.65 GHz, ?36.43 (dB) at 10.70 GHz, ?37.08 (dB) at 21.33 GHz, and ?29.11 (dB) at 15.35 GHz. The proposed antenna can be applied in numerous wireless applications by selecting different ground size.
关键词： Multiband,Re?ection coef?cient,HFSS,Microstrip patch antenna
更新于2025-09-04 15:30:14
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Compact Dual-Band Coupler for Vehicular Beam-Forming Array
摘要： A novel kind of compact dual-band quadrature patch coupler for vehicular beam-forming array is proposed for the first time in this paper. To keep the performance of the first operating frequency 2.4 GHz (for Bluetooth Low Energy (BLE)) and generate the second operating frequency 5.9 GHz (for Dedicated Short Range Communications (DSRC)) simultaneously, complementary triangular split resonant rings (CTSRRs) and splitting gaps are employed to improve the performance of this new coupler; final size of the proposed coupler is 0.24???? (for 2.4 GHz). To validate the performance and design method of the coupler this paper proposed, a 3D model is constructed and optimized with ANSOFT HFSS firstly and then a coupler prototype is fabricated and measured. The measured results show that the amplitude unbalance (AU) is 0.54 dB and 0.44 dB for 2.4 GHz and 5.9 GHz, respectively, and the corresponding phase unbalance (PU) is 93.5 and 92 degrees, respectively.
关键词： ANSOFT HFSS,vehicular beam-forming array,CTSRRs,compact dual-band coupler
更新于2025-09-04 15:30:14
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[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Equivalent circuit model for cross-shaped frequency selective surface absorbing material
摘要： The equivalent circuit model is used to analyze the actual structure of the multilayer frequency selective surface absorbing. The transmission line model and equivalent impedance are provided for the transmissivity of electro- magnetic waves. The results are validated by comparison with the Ansoft HFSS. In addition, the in?uences of different parameters are discussed. It is found that such a multilayer absorbing material has a good tenability and independence for the absorption frequency.This can be used to design absorbing material for different requirements.
关键词： HFSS,circuit model,frequency selective surface
更新于2025-09-04 15:30:14