应用于穿墙雷达的超宽带Vivaldi天线设计  

Design of UWB Vivaldi Antenna for Through-wall Radar

作　　者：甄法健 刘云清[1,2] 李兴广 佟永财[3] ZHEN Fajian;LIU Yunqing;LI Xingguang;TONG Yongcai(School of Electronic Information Engineering,Changchun University of Science and Technology,Changchun 130022,Jilin,China;Jilin Provincial Science Technology Innovation Center of Intelligent Perception and Information Processing,Changchun 130022,Jilin,China;Aviation Ammunition Institute,Harbin 150030,Heilongjiang,China)

机构地区：[1]长春理工大学电子信息工程学院,吉林长春130022 [2]吉林省智能感知与信息处理科技创新中心,吉林长春130022 [3]航空弹药研究院,黑龙江哈尔滨150030

出　　处：《兵工学报》2024年第12期4508-4516,共9页Acta Armamentarii

基　　金：吉林省科技发展计划项目(20220401090YY)。

摘　　要：为满足穿墙雷达对超宽带、高增益、小型化天线的需求,提出一种应用于穿墙雷达的新型超宽带Vivaldi天线。通过设计具有梯度分布的斜槽,优化天线表面电流,改善天线增益;加载非对称性椭圆曲率引向器耦合高频能量,改善天线高频增益。天线工作频段为1~3 GHz,增益达到7 dBi,具有定向对称辐射特性及良好的时域响应特性,天线尺寸为160 mm×150 mm×1.5 mm。在全波仿真软件中进行穿墙场景模拟,对天线的穿墙辐射能力和墙后目标检测能力进行验证,透射信号和目标回波信号表明天线具备穿墙雷达天线的性能。In order to meet the needs of ultra-wideband(UWB),high-gain,and miniaturized antenna for through-wall radar,a new ultra-wideband Vivaldi antenna for through-wall radar is proposed.The antenna surface current is optimized and the antenna gain is improved by designing a chute with gradient distribution.An asymmetric elliptical curvature director is loaded to couple the high-frequency energy and improve the high-frequency gain of antenna.The working frequency band of the antenna is 1-3 GHz,and its gain reaches 7 dBi.The antenna has the directional symmetrical radiation characteristics and good time-domain response characteristics.The antenna size is 160 mm×150 mm×1.5 mm.The through-wall scene is simulated by using the full-wave simulation software to verify the antenna's through-wall radiation capability and target detection capability behind the wall.The transmission signal and target echo signal indicate that the Vivaldi antenna has the performance of a through-wall radar antenna.

关 键 词：穿墙雷达 VIVALDI天线 超宽带 高增益 

分 类 号：TM937[电气工程—电力电子与电力传动]