A Ka-Band Circular Polarized Waveguide Slot Antenna with a Cross Iris

被引：1

作者：

Yoon, Sung-Joon ^{[1
]}

Choi, Jae-Hoon ^{[1
]}

机构：

[1] Hanyang Univ, Dept Elect & Comp Engn, Seoul 133791, South Korea

来源：

APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 19期

关键词：

waveguide antenna; slot antenna; circular polarization; axial ratio enhancement; RADIATION;

D O I：

10.3390/app10196994

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Featured Application Segment waveguide slot antenna for a satellite communication and radar. A Ka-band circularly polarized (CP) waveguide slot antenna with a cross iris is proposed. To achieve the CP characteristic (LHCP) in the antenna, a hexagonal shaped cavity is used. The impedance matching is improved by adjusting the sizes of the hexagonal cavity and a rectangular matching cavity. To enhance the axial ratio bandwidth, a cross iris is used with two arms of different lengths. From experimental results, the proposed antenna has a 3 dB axial ratio bandwidth of 6810 MHz (31.72 GHz-38.53 GHz). The -10 dB reflection coefficient bandwidth of the proposed antenna ranges from 31.51 GHz to 39.21 GHz (7700 MHz).

引用

页码：1 / 15

页数：15

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