A Wide-Beam Circularly Polarized Asymmetric-Microstrip Antenna
A Wide-Beam Circularly Polarized Asymmetric-Microstrip Antenna
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DOI：
10.1109/tap.2015.2438397
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发表时间：
2015-06
影响因子：
5.7
通讯作者：
Nasimuddin;Y. Anjani;A. Alphones
中科院分区：
文献类型：
--
作者：
Nasimuddin;Y. Anjani;A. Alphones
提出了一种用于全球卫星导航系统的四不等圆片宽波束圆极化（CP）非对称微带天线。在宽波束宽度CP辐射的方形微带辐射器的四角上对称地集成了四个不相等的圆形贴片。该天线的实测3db轴向比（AR）带宽为24.0 MHz (1.568-1.592 GHz)， 3db AR波束宽度约为180°，10db回波损耗带宽为56.0 MHz (1.556-1.612 GHz)，增益大于5.0 dBic。天线的整体尺寸为0.373λo×0.373λo×0.016λo，频率为1.6 GHz。
A wide-beam circularly polarized (CP) asymmetric microstrip antenna with four unequal circular-patches is proposed for global navigation satellite systems. Four unequal circular-patches are integrated symmetrically onto corners of a square microstrip radiator for CP radiation with wide-beamwidth. The measured 3-dB axial ratio (AR) bandwidth of the proposed antenna is 24.0 MHz (1.568-1.592 GHz) with a 3-dB AR beamwidth of around 180° across the bandwidth and a 10-dB return loss bandwidth is 56.0 MHz (1.556-1.612 GHz) with a gain of more than 5.0 dBic. The overall size of the antenna is 0.373λo×0.373λo×0.016λo at 1.6 GHz.