摘要
设计了一种小型化宽带定向天线。椭圆形的印制单极天线是一种小型化的超宽带天线，通过将该单极天线的地板折叠为字母C的形状，作为单极天线振子的反射腔，不仅实现了天线的定向性，同时进一步减小了天线的高度尺寸（0．13λ0，λ0为工作频率空气波长）。制作了天线样件并进行了测试，实测结果表明，该小型化天线驻波小于3的工作带宽为700～3800MHz，天线的方向图在整个频带内具有良好的定向辐射特性。
A novel miniaturized wideband directional antenna is designed. Printed elliptical monopole antenna is an uhra-wideband antenna. As the antenna reflector cavity, the ground of the monopole antenna is folded into the shape of the letter C and the directional antenna is achieved and the height size of the an- tenna to 0.13λ0（ λ0, free air space wavelength） could be further reduced. An antenna prototype is fabricated and tested. Experiment results show that the antenna has a wide working bandwidth （700-3800MHz, VSWR ≤3 ） and good directional radiation characteristics in the whole frequency band.
出处
《通信技术》
2014年第6期604-607,共4页
Communications Technology
关键词
小型化
定向辐射
宽带
miniaturized
directional
broadband
