一种用于交通测速的毫米波天线阵的设计  

Design of a Millimeter-wave Array for Traffic Speed-measuring

作　　者：林鑫 邵晓龙 黄一 胡俊毅 李丽娴 

机构地区：[1]上海航天电子通讯设备研究所,上海201109

出　　处：《无线电工程》2017年第5期71-74,共4页Radio Engineering

基　　金：上海航天技术研究院核攀基金资助项目(ZY2014-023)

摘　　要：基于交通测速雷达高精度、轻型化和小型化等要求,给出了以一种可用于交通测速的毫米波天线阵的设计。天线阵采用串并混合馈电方式,对天线单元以及馈电网络进行独立设计,对天线阵进行一体化设计和加工验证。天线阵采用串、并联方式进行馈电,从而实现天线单元幅度的泰勒分布,使得天线阵在24~24.25 GHz的工作频段内,在E面和H面均获得小于-20 d B的低副瓣性能。整部天线阵具有轻型化、低副瓣和高增益等特点,满足作为交通测速雷达的需求。Under the necessity of high accuracy,low weight and small scale in traffic speed-measuring radar, the design of a millimeter-wave array for traffic speed-measuring is proposed in the paper. The array is fed with serial and parallel mode. Firstly, the antenna element and the network are designed and optimized separately.Then the array is designed and fabricated with integrative way. The Taylor distribution of elements amplitude is achieved by design of serial and parallel feed mode.The millimeter-wave array aehievcs low side lobe level of - 20 dB in both E-plane and H-plane in Ka frequency range （ 24 - 24.25 GHz） .This millimeter-wave array provides low weight,low side lobe level and high antenna gain,which is already applied in a traffic speed-measuring radar system.

关 键 词：串并混合馈电 泰勒分布 低副瓣 毫米波 

分 类 号：TN015[电子电信—物理电子学]