探地雷达介质谐振天线的原理研究  

Research on Dielectric Resonator Antennas of Ground Penetrating Radar

作　　者：葛薇[1] 张照[1] 彭正辉[1] 李静[2] 陈娟[3] Ge Wei;Zhang Zhao;Peng Zhenghui;Li Jing;Chen Juan(China Research Institute of Radiowave Propagation,Shandong Qingdao 266107;Jilin University,Jilin Changchun 130026;Xi’an Jiao Tong University,Shaanxi Xi’an 710071)

机构地区：[1]中国电波传播研究所,山东青岛266107 [2]吉林大学,吉林长春130026 [3]西安交通大学,陕西西安710071

出　　处：《科技风》2024年第14期90-93,共4页

摘　　要：为了增加探地雷达的探测深度,提高探地雷达增益,本文从物理学中周期性力作用下的阻尼振动的角度出发,推导周期信号作用下电磁波在介质谐振天线中的谐振过程,阐述了天线的基本工作原理,并对其谐振放大作用进行了仿真.研究发现,在周期信号作用下,天线谐振腔内的信号通过谐振形成驻波实现能量增强,证明了以时间换取能量是可行的.这种谐振放大作用使天线具有更高的辐射功率,对解决探地雷达的探深问题具有重要意义.In order to improve depth and gain of ground penetrating radar,the paper deduces resonance process of electromag-netic wave in the dielectric resonator antenna stimulated by periodic signal from the perspective of physical damped oscillation stimulated by periodic force and describes the basic working method,and the resonance amplification is simulated.It is found that signals in the antenna resonant cavity form standing waves stimulated by periodic signal and the energy is enhanced,which proves that trading time for energy is feasible.The antenna has high radiation due to the resonance amplification,which is of great signifi-cance for solving the depth problem of the ground penetrating radar.

关 键 词：介质谐振天线 探地雷达 驻波 谐振腔 谐振放大 

分 类 号：TN9[电子电信—信息与通信工程]