摘要
中波发射台天馈线调配网络是发射系统重要的组成部分,其作用是实现天线与馈线的匹配。传统的天馈线调配网络由匹配网络、吸收网络和阻塞网络组成,由于采用的元件多,因而调配网络体积庞大,而且费用也高。一种结构简单、匹配效果好的中波双调谐网络可以解决传统调配网络的缺陷。为此,详细论述双调谐网络和主备切换系统的特点、设计、安装和调试工作实践。
The distribution network of the antenna feeder of the medium wave transmission station is an important component of the transmission system,and its function is to achieve the matching between the antenna and the feeder.The traditional sky feeder distribution network consists of a matching network,an absorption network,and a blocking network.Due to the use of multiple components,the distribution network has a large volume and high cost.A medium wave dual tuned network with a simple structure and good matching effect can solve the shortcomings of traditional deployment networks.This article provides a detailed discussion on the characteristics,design,installation,and debugging practices of dual tuned networks and main backup switching systems.
作者
余剑
YU Jian(Zhejiang province Zhongbo Launch Management Center Kaihua Radio Relay Station,Quzhou 324300,China)
出处
《电视技术》
2023年第8期95-99,共5页
Video Engineering
关键词
天馈线系统
双调谐网络
主备切换系统
安装调试
antenna feeder system
dual tuning network
active/standby switching system
installation and adjustment
