测试技术学报2025，Vol.39Issue(5)：506-510,5.DOI:10.62756/csjs.1671-7449.2025064
加载缺陷金属腔体的圆极化探地雷达天线
CP Cross Dipole Antenna with Defected Metal Cavity for GPR System
摘要
Abstract
A broadband high-gain circularly polarized(CP)cross-dipole antenna loaded with a defective metal back cavity is proposed in this article.Based on wide-ended elliptical radiating patches,two new CP passbands are formed by loading defective metal cavities with two operating modes.In addition,four cross-slots are etched on the radiation patch to enhance polarization continuity.Meanwhile,a stepped phase delay line is employed to extend the impedance bandwidth(IMBW)of the antenna.The antenna is simulated and optimized,and the results show that the proposed antenna owns an IMBW of 0.95～2.82 GHz(99.2%),a 3 dB axial ratio bandwidth(ARBW)of 0.9～2.84 GHz(103.7%),a maximum gain of 7.4 dBic and a size of 0.6λ0×0.6λ0×0.25λ0,which meets the requirement of UHF band ground penetrating radar systems.关键词
探地雷达/交叉偶极子天线/圆极化/缺陷金属腔体/宽带Key words
ground penetrating radar/cross dipole antenna/circularly polarized/defected metal cavity/broadband分类
信息技术与安全科学引用本文复制引用
杨国富,秦会来,王长瑞..加载缺陷金属腔体的圆极化探地雷达天线[J].测试技术学报,2025,39(5):506-510,5.基金项目
中建二局科技资助计划(2021ZX000001) （2021ZX000001）
