Low-radar cross section wideband circularly polarized patch antennas by controlling scattering and surface wave propagation with a coding metasurface

被引：0

作者：

Zheng, Qi ^{[1
]}

Ma, Jinyu ^{[1
]}

Zhao, Qi ^{[1
]}

Hong, Run ^{[1
]}

Vandenbosch, Guy A. E. ^{[2
]}

机构：

[1] Shanghai Univ, Sch Commun & Informat Engn, Shanghai 200444, Peoples R China

[2] Katholieke Univ Leuven, Dept Elect Engn, ESAT WaveCoRE Res Div, B-3001 Leuven, Belgium

来源：

JOURNAL OF APPLIED PHYSICS | 2025年 / 137卷 / 09期

基金：

上海市自然科学基金;

关键词：

LOW-RCS METASURFACE; BROAD-BAND; REDUCTION; DESIGN; ARRAY;

D O I：

10.1063/5.0194973

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new method using a 1-bit coding metasurface to reach a low radar cross section (RCS) for a wideband circularly polarized (CP) patch antenna is proposed. The essence of the technique is to simultaneously control phase cancelation and surface wave propagation with the coding metasurface. The metasurface cell is a simple rectangular patch with a 180 degrees phase difference between x- and y-directions. In terms of radiation performance, owing to the propagated surface waves, two TM10 and TM30 modes are excited and the wideband CP radiation is achieved. In terms of scattering performance, owing to the phase cancelation of the sequential-rotated pattern, the backward RCS of the proposed antenna is reduced for both in-band and out-band frequencies compared to that of the conventional antenna. A prototype operating at C-band is fabricated and measured. Experimental and simulation results are in good agreement. The CP bandwidth (both |S-11| < -10 dB and AR < 3 dB) is extended to 10.0%, and the peak gain is enhanced to 8.90 dBi.

引用

页数：9