圆极化介质谐振天线设计与实现  

Design and implementation of circularly polarized dielectric resonant antenna

作　　者：戴亚男 伍捍东 程光伟[1] 

机构地区：[1]西安工业大学,西安710021 [2]西安恒达微波技术开发有限公司,西安710100

出　　处：《国外电子测量技术》2017年第12期105-108,共4页Foreign Electronic Measurement Technology

摘　　要：探地雷达、隔墙雷达、人体接触式微波治疗探测设备的天线设计,要考虑应用场景并加入应用场景一并设计或仿真计算,才能获得最佳的应用效果。本文采用应用背景下的设计方法,设计了一种应用于接触式微波检测系统的圆极化介质天线。该天线工作在L波段,采用带状线缝隙耦合馈电。通过不等长十字耦合缝隙实现圆极化。研究了辐射背景在一定范围内变化时,对天线回波损耗,轴比和方向图的影响。并制作了实物,VSWR<2的带宽,仿真结果为16.6%,实测结果为29.7%。The antenna design of ground penetrating radar, partition radar and human contact microwave treatment equip- ment should consider the application scenarios and join the application scenarios together to design or simulate the calcu- lation, so as to obtain the best application effect. In this paper, a circularly polarized dielectric antenna for contact micro- wave detection system is designed under the application background. The antenna operates at L band and is fed by strip- line slot coupling. Circular polarization is achieved by unequal length cross coupling slits. The influence of the radiation background on the return loss, axial ratio and direction of the antenna is studied. The bandwidth of the object and VSWR〈2 is simulated. The simulation

关 键 词：接触式微波检测 圆极化介质天线 带状线缝隙耦合馈电 

分 类 号：TN82[电子电信—信息与通信工程]