新型小型化的宽带定向天线

新型小型化的宽带定向天线

内容简介：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700~3800 MHz,天线的方向图在整个频带内具有良好的定向辐射特性。

Abstract：A novel miniaturized wideband directional antenna is designed. Printed elliptical monopole an-tenna is an ultra-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 fabrica-ted 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.

作者：孙凤林,

关键词：小型化, 定向辐射, 宽带,