卫星接收后馈天线极化角调整装置的技术改造  

The change of the polarization angle adjusting device on the back－feed antenna

作　　者：周丽 周立成 

机构地区：[1]河南广播电视发射台,河南郑州450008

出　　处：《电视技术》2001年第7期70-72,共3页Video Engineering

摘　　要：简要阐述了对卫星接收后馈天线极化角调整装置进行技术改造的必要性，并给出了具体的改造方法。进行技术改造后，彻底改善了卫星广播电视的收看效果，在天线上安装双极化、双波段馈源，1副天线相当于4副，节约了经费，提高了天线的利用率。The necessity of technical rebuilding of polarization angle adjustment device on back-feed antenna for satellite reception is described briefly， and methods for technical rebuilding are given． After technical rebuilding， the reception quality is greatly improved． The installation of a dual-polarization and dual-band feeder on an antenna will make one antenna be equivalent to four antennas． Thus a lot of outlay will be saved and the efficiency of antenna utilization will be increased．

关 键 词：接收天线 极化角 后馈天线 卫星接收 

分 类 号：TN827.2[电子电信—信息与通信工程]