【作者】 陈谦； 陈见； 薄勇； 杨利霞；

【Author】 CHEN Qian;YANG Lixia;WU Xianliang;Information Materials and Intelligent Sensing Laboratory of Anhui Province,Anhui University;

【机构】 信息材料与智能感知安徽省实验室安徽大学；

【摘要】 本文提出了一种用于77 GHz车载雷达的一维相控阵天线,该天线包含10个贴片天线单元,二层Rogers3003微带板。利用-30 dB泰勒加权的"T"形枝节馈电网络,使天线在非扫描向具备了-20 dB低副瓣,采用同轴转带地共面波导中部馈电结构,获得了对称的天线方向图,该天线增益大于12.8 dBi。天线在75-79 GHz具备一维±45°波束扫描能力,扫描有源驻波小于2。该天线是在当前加工工艺约束下进行设计的,具备一定的工程应用价值。更多还原

【Abstract】 A one-dimensional phased array antenna was proposed for 77 GHz automotive radar application.The antenna was constructed by 10 patch antenna units and two-layer microstrip boards of Rogers 3003.A low sidelobe of-20 dB was achieved in the non-scanning direction by using a T-shaped branch feeding network with-30 dB Taylor weighting.A symmetrical antenna pattern was obtained by adopting a coaxial to ground coplanar waveguide(GCPW) feed structure set in the middle of the antenna array,and the gain of the antenna was greater than 12.8 dBi.The antenna has a one-dimensional beam scanning capability of ± 45° at 75～79 GHz,and the scanning active voltage standing wave ratio(AVSWR) is less than 2.This antenna is designed under the constraints of current processing technology,and has engineering application value更多还原