第二讲电视发射天线馈线系统一、概述电视发射机末级输出功率,经馈线系统馈送到电视发射天线振子。馈线系统通常由主馈管(线)、调配器、T型阻抗变换器(功率分配器)、移相器、直角弯头、阻抗变换器(功率分配器)分馈线、馈电头以及各种专用电缆等馈电部件组成。它是给天线振子传输射频功率唯一的渠道。因此,馈线系统与天线振子匹配与否,传 Lecture 2 Television transmitting antenna feeder system First, an overview of the final output power of the TV transmitter, fed to the TV transmitting antenna oscillator by the feeder system. Feeder systems are usually composed of main feed lines, adapters, T-type impedance transformers (power dividers), phase shifters, right angle bends, impedance transformers (power divider) feeders, feeders and various Dedicated cable feeder components. It is the only channel for transmitting antenna power to RF power. Therefore, the feeder system and antenna oscillator match or not, pass