摘要
为24 GHz车载防撞雷达收发前端设计并制作了一款高增益易集成的微带阵列天线。该天线阵采用改进的新型并联馈电网络,在满足各阵元激励等幅同相的基础上,减少了馈线损耗和各种杂散辐射,从而提高了天线增益与极化纯度,同时减小了天线尺寸。测试结果表明,所研制的4×8元微带天线阵带宽为24.0~24.2 GHz（电压驻波比VSWR〈1.4）,最大增益达19 dBi,其尺寸仅80 mm×36 mm。
A microstrip array antenna with advantages of high gain and easy integration was designed and fabricated for the transceiver of motor anti-collision radars. New simple parallel feed network was improved and used in order to reduce feeder loss and stray radiation on the condition that each element of the antenna array was excited by the same amplitude and phase. These improved the antenna gain, polarization purity and reduce the antenna size. The measured results show that the bandwidth （VWSR〈1.4） of the 4×8 antenna array is 24.0-24.2 GHz, the maximum gain reaches 19 dBi, and its size is only 80 mm×36 mm.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2012年第3期67-70,共4页
Electronic Components And Materials
基金
认知无线电与信息处理省部共建教育部重点实验室(桂林电子科技大学)基金资助项目(No.桂科攻0996028)
关键词
微带天线阵
并馈网络
高增益
小型化
microstrip array antenna
parallel feed network
high gain
small size
