电子科技大学学报2025，Vol.54Issue(6)：906-915,10.DOI:10.12178/1001-0548.2025036
低频混合折叠偶极子无人机载探地雷达天线
A low-frequency hybrid folded dipole UAV-mounted GPR antenna
摘要
Abstract
A hybrid folded dipole patch antenna(HFDPA)composed of linear folded dipole and bow-tie dipole is proposed.By bending the tail linear radiation conductor with relatively small distributed current at the antenna and loading the dielectric onto the antenna,the gain at the low-frequency end of this antenna can still approach the gain of a standard half-wave antenna even after the physical length is significantly reduced.Meanwhile an efficient resistive loading implement method of"broadband loading,local optimization(BLLO)"is proposed based on the classical Wu-King loading theory.The size of the finished antenna is 1800 mm×200 mm×1 mm and the minimum operating frequency is 20 MHz.The antenna simulation and test results prove that the antenna has a low-frequency gain close to the standard half-wave antenna,and there is no obvious ringing effect.关键词
新型探地雷达天线/天线小型化技术/低频超宽带天线/高效电阻加载/介质加载Key words
new type of GPR antenna/technology of antenna miniaturization/low-frequency UWB antenna/efficient resistive loading/dielectric loading分类
电子信息工程引用本文复制引用
曾庆刚,高嵩,李松,辛翔..低频混合折叠偶极子无人机载探地雷达天线[J].电子科技大学学报,2025,54(6):906-915,10.基金项目
四川省科技计划项目(2023YFG0327) （2023YFG0327）
国家重点研发计划项目(2022YFC3003202) （2022YFC3003202）
