南京航空航天大学学报（英文版）2025，Vol.42Issue(1)：80-89,10.DOI:10.16356/j.1005-1120.2025.01.006
基于曲折SIW与缺陷地结构的连续快速波束扫描圆极化漏波天线
Continuous Rapid-Beam-Scanning and Circular-Polarized Leaky-Wave Antenna Based on Meandering-SIW with Defected Ground Structures
阮一铮 1牛臻弋 1陈伟康 1赵永久 1潘时龙1
作者信息
- 1. 南京航空航天大学微波光子技术国家级重点实验室,南京 211106,中国
- 折叠
摘要
Abstract
A compact high-scanning-rate circular-polarized leaky-wave antenna(LWA)based on a meandering substrate integrated waveguide(SIW)with defected ground structures(DGSs)is presented.The meandering-SIW design is employed to enhance the beam scanning rate,while circular polarization is achieved by etching π-shaped slots on the top plane.To suppress the open stopband at broadside,offset circular DGSs are periodically etched on the ground plane.Their impact on the reflection coefficient and axial ratio is then analyzed through a parametric study.A prototype of the antenna is simulated,fabricated,and measured.Both simulated and measured results indicate a scanning rate of approximately 8.6,with continuous beam scanning from-41°to 59°across the 11.3-12.7 GHz operating band.The antenna maintains an axial ratio below 3 dB within the 11.5-12.3 GHz range.This design shows promise for use in wireless communication systems,particularly in environments with increasingly limited spectrum resources.关键词
漏波天线/扫描速率/圆极化/开阻带/缺陷地结构Key words
leaky-wave antenna(LWA)/scanning rate/circular polarization/open stopband/defected ground structure(DGS)分类
电子信息工程引用本文复制引用
阮一铮,牛臻弋,陈伟康,赵永久,潘时龙..基于曲折SIW与缺陷地结构的连续快速波束扫描圆极化漏波天线[J].南京航空航天大学学报（英文版）,2025,42(1):80-89,10.
