摘要
设计了一款工作于24GHz-24.25GHz谐振式串并结合馈电的微带贴片平面阵列天线。此馈电方式与单独的串联馈电或者并联馈电的阵列相比,既可以充分的利用串联馈电有效减小馈电网络的损耗,提高天线空间利用率的优点,又能很好的把并联馈电设计简单的优点利用起来。仿真结果表明:此天线阵的的增益可达22dB,E面和H面的半功率波瓣宽度都很窄,大约为12°,笫一副瓣电平约为-12dB。该天线体积小,性能稳定,可用于汽车防撞、测速雷达、防盗等场合。
This paper presents a work in the freqrence range of 24GHz to 24.25GHz resonant Microstrip Patch Planar Array antenna with Series and parallel combination of feed network.This feed method can be fully utilized in series feed network which is effective to reduce feed loss and to increase the advantages of space utilization,but also use the advantages of simple to design in parallel feed network.Simulation results show that:The antenna array gain up to 22dB,E-Plane and H-Plane half-power Beamwidth are small,about 12°.The first sidelobe level is about-12dBi.The antenna is small size, performance and stability,can be used in car anticollision radar,speed radar,security and other occasions.
出处
《微波学报》
CSCD
北大核心
2010年第S2期211-214,共4页
Journal of Microwaves
关键词
微带贴片天线阵
行波天线
测速雷达
Microstrip patch antenna array
Travelling wave antenna,Speed radar
