天线罩去极化效应及其补偿  

Radome Depolarization Effect and Its Compensation

作　　者：田海南[1] 贾维敏[1] 杨慧杰[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《通信技术》2011年第3期18-20,共3页Communications Technology

摘　　要：天线罩在对天线起到保护作用的同时,也导致了线极化电磁波通过它时必将产生的去极化效应,从而大大影响了通信质量,这主要是因为天线罩对垂直极化分量和平行极化分量的传输系数不同所致。为提高通信系统的交叉极化隔离度,更好地进行通信,对天线罩去极化效应进行了计算,根据计算结果进行了仿真,并设计了补偿电路。结果表明,通过该方法补偿后,能有效提高通信系统的交叉极化隔离度,减少天线罩去极化效应对通信的影响。Radome could protect the antenna from rain or wind,but could also result in depolarization effect for the linear polarized electromagnetic wave at the same time,in which case the adverse effect to the communication would occur.A major source of the effect is associated would occur a difference of the radome wall complex transmission coefficients between the vertical polarized embranchment and the parallel polarized embranchment. In order to improve XPD of the communication system and get a higher communication quality,the radome depolarization effect is calculated,simulations based on the calculation outcome are implemented,and the compensation circuit is designed.With the compensation,XPD of the communication system is increased effectively, and the radome depolarization effect to the communications is reduced remarkably.

关 键 词：天线罩 线极化波 去极化效应 极化补偿 

分 类 号：TN911.2[电子电信—通信与信息系统]