Circularly Polarized T-Shaped Slot Waveguide Array Antenna for Satellite Communications

被引：26

作者：

Dimitrov, Kristian Chavdarov ^{[1
]}

Lee, Yongshik ^{[1
]}

Min, Byung-Wook ^{[1
]}

Park, Jeongwoo ^{[2
]}

Jeong, Jihoon ^{[2
]}

Kim, Hweong-J. ^{[2
]}

机构：

[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 03722, South Korea

[2] Intellian Inc, Technologies Inc, Seongnam 13493, South Korea

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2020年 / 19卷 / 02期

关键词：

Antenna arrays; circular polarization; planar arrays; slot antennas; waveguide antennas;

D O I：

10.1109/LAWP.2019.2961386

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel circularly polarized waveguide slot array for satellite communications is proposed. The antenna features a unique feeding network and a unit cell that consists of a pair of simple T-shaped waveguide slots. The proposed configuration not only eliminates grating lobes, which are often seen in conventional waveguide slot arrays, but also simplifies the fabrication process without any sacrifice in the performance, while also allowing scalability. A prototype 6 x 8 array antenna is designed at 29.5 GHz, and fabricated by dip brazing. A high gain of 21.9 dBi and a -10 dB impedance bandwidth of 1 GHz are achieved with an axial ratio (AR) of 1.3 dB without any grating lobes. The measured results are in very good agreement with the simulated results.

引用

页码：317 / 321

页数：5

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