宽带串联馈电圆极化微带天线阵列

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting Pub Date : 2020-07-05 DOI:10.1109/IEEECONF35879.2020.9329489

Anamika Verma, Mahima Arrawatia, G. Kumar

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引用次数: 3

摘要

本文提出了一种宽带串联馈电圆极化微带天线阵列。串联馈电阵列由四个依次旋转的圆形微带天线和一个圆极化贴片天线组成。中心贴片由两个相移90°的正交l探针馈电。另外，在中心贴片上耦合了四个共振频带较高的顺序旋转寄生贴片。寄生贴片提高了天线在高频段的轴比和增益。天线的$\vert \ maththrm {S}_{11}\vert < -10\ \text{dB}$阻抗带宽为3.77 ~ 6.30 GHz(50.2%)。天线轴向比< 3db带宽为3.77 ~ 5.85 GHz(43.2%)。串联馈电CP天线阵列的最大增益为12.1 dBi。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Broadband Series-fed Circularly Polarized Microstrip Antenna Array

In this paper a broadband series-fed circularly polarized microstrip antenna array is proposed. The series fed array consists of four sequentially rotated circular micro-strip antenna connected to a circularly polarized patch antenna. The center patch is fed by two orthogonal L-probes with 90° phase shift between them. In addition, four sequentially rotated parasitic patches which resonates at higher frequency band are coupled to the center patch. The parasitic patch improves the axial ratio and gain of the antenna at higher frequency band. The $\vert \mathrm{S}_{11}\vert < -10\ \text{dB}$ impedance bandwidth of the antenna is from 3.77-6.30 GHz (50.2%). The axial ratio <3 dB bandwidth of the antenna is from 3.77-5.85 GHz (43.2%). The maximum gain of the series-fed CP antenna array is 12.1 dBi.

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来源期刊

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

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