基于 FEK O的双极化振子天线设计与仿真研究

基于 FEK O的双极化振子天线设计与仿真研究

内容简介：采用FEKO软件，设计和仿真了一种双极化振子天线，以说明微波电磁仿真技术在工程中的作用。设计的振子天线由正交放置的2个天线单元组成，在馈线处做了开槽处理，便于阻抗匹配。在天线下方加入一块锥形地板，使其更接近于定向辐射。仿真结果表明，该天线两个端口的电压驻波比小于1．5的阻抗带宽约为800 M Hz ，端口隔离度小于-27 dB ，波束宽度约为60°，增益约为5 dB ，轴比约为31 dB。

Abstract：This paper designs and simulates a kind of dual polarized dipole antenna based on FEKO software to demonstrate the role in the engineering by using microwave electromagnetic simulation technique .The designed dipole antenna is composed of two antenna elements which are orthogonally placed .The slots are made on the feeding lines to realize the impedance matching .A cone-shaped ground structure is introduced to realize the mono-directional radiation . The simulation results show that the impedance bandwidth when the voltage standing wave ratio (VSWR) is lower than 1 .5 for each port is about 800M Hz ,the isolation degree between two ports is less than -27 dB ,the beam width is about 60° ,the gain is about 5 dB and the axial ratio (AR) is about 31 dB .

作者：宋立众, 房亮, 聂玉明, 张敏,

关键词：实验教学, 双极化天线, 振子天线, 天线仿真, FEKO,