c波段宽带圆极化滤波单极天线

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting Pub Date : 2020-07-05 DOI:10.1109/IEEECONF35879.2020.9329998

Bi-Hui Xu, Yanwen Zhao, Li Gu

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引用次数: 1

摘要

提出了一种简单紧凑的c波段宽带圆极化滤波平面单极天线。采用改进接平面的印刷刀形单极子实现宽带阻抗匹配和圆极化辐射。通过在馈线正下方的地平面上对称刻蚀一对矩形互补裂环谐振器(csrr)，实现了良好的上阻带滤波性能，增强了高频CP辐射。该天线在3.8 ~ 8.1 GHz范围内提供72%的−10db阻抗带宽，在4.1 ~ 7.9 GHz范围内提供63%的3db轴向比(AR)带宽。

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Broadband Circularly Polarized Filtering Monopole Antenna for C-Band Applications

A simple and compact broadband circularly polarized (CP) filtering planar monopole antenna for C-band applications is presented. A printed falcate-shaped monopole with a modified ground plane is applied to realize broadband impedance matching and circular polarization radiation. By symmetrically etching a pair of rectangular complementary split-ring resonators (CSRRs) on the ground plane directly beneath the feedline, good filtering performance in the upper stopband is achieved and CP radiation towards high frequency is enhanced. The proposed antenna provides −10 dB impedance bandwidth of 72% ranging from 3.8 to 8.1 GHz, and the 3 dB axial ratio (AR) bandwidth of 63% ranging from 4.1-7.9 GHz.

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

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