一、前言阻塞网络实际上就是LC并联谐振电路,它在中波固态机天线调配网络中主要用于抑制邻频串扰。对阻塞网络的要求一是要通过本频信号,二是要阻塞他频信号。通过本频时电抗不要过大,阻塞他频时对载频及上、下边频都应呈现较大阻抗。 I. Preface Blocking network is actually a LC parallel resonant circuit, which is mainly used to suppress adjacent-channel crosstalk in the network deployment of the antenna of the solid-state wave machine. One of the requirements for blocking the network is to pass the frequency of the signal, the second is to block the frequency of his signal. When this frequency reactance should not be too large, blocking the frequency of his carrier frequency and upper and lower frequency should present a larger impedance.