中波发射机和天馈网络频率调整改造方案的设计和实施  

Frequency Regulation System in MW Transmitter and Antenna-tuned Network

作　　者：陈加佳 Chen Jiajia(Station 101, Fujian Radio and Television Transmission Center, Fujian 350001, China)

机构地区：[1]福建省广播电视传输发射中心一0一台,福建350001

出　　处：《广播与电视技术》2018年第5期128-131,共4页Radio & TV Broadcast Engineering

摘　　要：发射机工作频率的调整必然要对整个发射系统匹配网络进行改造。本文以中波PDM发射机为例,从发射机和天馈系统两个方面分析设计了匹配网络的调整方案,探讨了如何选择适宜的调谐网络,既能克服高频串扰,也不会对发射信号产生衰减,实现最优传输发射。This paper introduces that the transmission system matching network should be transformed because of the adjustment of the working frequency of the transmitter, in two aspects of the MW transmitter and the antenna-tuning. It explores the method of the tuning network used tbr MW emission. Not only can the high frequency crosstalk he overcome, but also the emission signal will not be attenuated.

关 键 词：中波发射机 频率调整 天线 单调谐回路 电磁耦合双调谐回路 

分 类 号：TN934.1[电子电信—信号与信息处理]