文档介绍：第一章 第一章小信号调谐放大器 § 概述: 小信号调谐放大器是一种窄带的选频放大器,是无线电接受设备的主要部件. 窄带: 有用信号的最大频率 载波频率 School munication and Information Engineering 1- School munication and Information Engineering School munication and Information Engineering § 谐振回路 一、并联谐振回路。 1、串、并联转换 School munication and Information Engineering 2、并联谐振回路的阻抗、谐振频率和品质因数 School munication and Information Engineering