Low-Profile Patch Antenna with Enhanced Gain and Bandwidth in the Wireless Energy Transmission System at 5.8 GHz

2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI:10.1109/CSRSWTC50769.2020.9372644

Deng Wang, Z. Zhong, Ping Huang, Xiao-Ding Chen

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引用次数: 1

Abstract

A low-profile microstrip patch antenna with enhanced gain and bandwidth is proposed in this paper for the wireless energy transmission system at 5.8 GHz. To improve the gain of a patch, a parasitic ring and a modified multi-layer substrate structure are introduced. As a result, the proposed patch antenna can obtain an enhanced gain and wider impedance bandwidth (IBW) simultaneously. The antenna design is simulated and obtained through a high frequency structure simulator ANSYS HFSS®. According to the simulated results, the proposed antenna can realize an enhanced gain of 9.33 dB at 5.8 GHz, which is 2.31 dB higher than that of an ordinary patch antenna. In addition, the IBW of the patch antenna has been expanded from 1.63% to 4.94%, which is increased by more than twice as much as before. Finally, the proposed antenna design with a good performance is realized in an overall dimensions of 60 mm × 60 mm × 1.524 mm, whose electrical size is 1.16λ0 × 1.161λ0 × 0.03λ0 (λ0is the free-space wavelength at the freuqency fo = 5.8 GHz).

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5.8 GHz无线能量传输系统中增强增益和带宽的低轮廓贴片天线

本文提出了一种用于5.8 GHz无线能量传输系统的具有增强增益和带宽的低轮廓微带贴片天线。为了提高贴片的增益，引入了寄生环和改进的多层衬底结构。结果表明，该贴片天线可以同时获得更高的增益和更宽的阻抗带宽。通过高频结构模拟器ANSYS HFSS®对天线设计进行了仿真。仿真结果表明，该天线在5.8 GHz时可实现9.33 dB的增益增强，比普通贴片天线增益提高2.31 dB。此外，贴片天线的IBW从1.63%扩大到4.94%，提高了一倍多。最后，在外形尺寸为60 mm × 60 mm × 1.524 mm，电尺寸为1.16λ0 × 1.161λ0 × 0.03λ0 (λ0为频率为5.8 GHz的自由空间波长)的条件下，实现了性能良好的天线设计。

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2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)

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