浅谈中波双频共用天线匹配网络  

Discussion on Matching Network of Medium Wave Dual Frequency Common Antenna

作　　者：李国武 刘志强 LI Guowu;LIU Zhiqiang(Henan Xinxiang medium wave broadcasting station,Xinxiang 453000,China;Henan Jiaozuo medium wave broadcasting station,Jiaozuo 454000,China)

机构地区：[1]河南省新乡中波转播台,河南新乡453000 [2]河南省焦作中波转播台,河南焦作454000

出　　处：《数字通信世界》2022年第8期47-49,52,共4页Digital Communication World

摘　　要：在信息技术高速发展的时代,广播电视面临着极大的机遇和挑战,中波广播作为传统的传媒形式之一,即使在新媒体不断发展的今天,仍能凭借自身优势占有一席之地。近些年,随着播出节目的增加,场地和资金的限制在一定程度上制约了中波的发展。为了节约成本,采用双频或三频共用一副天线,不仅可以减少发射天线及地网的费用,同时也大大节约了发射塔所占用的土地面积。In the era of rapid development of information technology,radio and television are facing great opportunities and challenges.As one of the traditional media forms,medium wave radio can still occupy a place by virtue of its own advantages even today with the continuous development of new media.In recent years,with the increase of broadcast programs,the restrictions of venues and funds have restricted the development of Zhongbo to a certain extent.In order to save the cost,the use of dual frequency or triple frequency sharing an antenna can not only reduce the cost of the transmitting antenna and the ground network,but also greatly save the land area occupied by the transmitting tower.

关 键 词：双频共同天线 预调网络 吸收网络 阻塞网络 匹配网络 移相网络 

分 类 号：TM13-4[电气工程—电工理论与新技术] TP391.9[自动化与计算机技术—计算机应用技术]