Advantages of Plate Antennas over Loop Antennas for Circular Polarization-Its Application in Array Antenna with a Simplified Feed

被引：0

作者：

Hirose, Kazuhide ^{[1
]}

Hirose, Mitsuki ^{[1
]}

Mita, Shintaro ^{[1
]}

Fujita, Takumi ^{[1
]}

Nakano, Hisamatsu ^{[2
]}

机构：

[1] Shibaura Inst Technol, Coll Engn, Tokyo 1358548, Japan

[2] Hosei Univ, Grad Sch Sci & Engn, Tokyo 1848584, Japan

来源：

ELECTRONICS | 2024年 / 13卷 / 19期

关键词：

circular polarization; wideband antenna; array antenna;

D O I：

10.3390/electronics13193896

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We analyze square antennas with one and quasi-two sources to reveal the relationship between loop and plate antennas. First, using the moment method, one-source antennas with corner truncation are investigated versus antenna height above the ground plane. As the height increases, the CP wave bandwidth of the plate antenna increases 17% for a 3 dB axial ratio criterion, whereas the loop antenna's bandwidth remains less than 3%. Next, we study quasi-two-source antennas without corner truncation versus antenna height. The plate antenna's bandwidth is found to reach 30%, which is wider than that of a loop antenna by a factor of two. Last, the plate antenna with quasi-two sources is applied in an array antenna, whose properties are compared to those of the corresponding loop antenna array. We present experimental results to verify the simulated results.

引用

页数：11

共 13 条

[1] A Multi-Mode Superposition Technique for Circular Polarized Beamforming and Steering in Mobile Communication and Radar Systems [J].