ELECTRONIC TUNER, INTEGRATED CIRCUIT USED FOR SAME, AND HIGH-FREQUENCY SIGNAL RECEIVER USING ELECTRONIC TUNER

摘要

PROBLEM TO BE SOLVED: To realize a compact electronic tuner by closely arranging inductors for antenna tuning at a plurality of reception circuit sections or inductors for inter-stage tuning without mutually using any partition boards for high-frequency shield.;SOLUTION: In each turning circuit for composing the plurality of reception circuit sections, at least one damping circuit is provided and the inductor for turning at the reception circuit section that is set to be inoperative is damped by the damping circuit, thus damping the inductor for antenna tuning provided at the inoperative reception circuit section or that for inter-stage tuning by each damping circuit.;COPYRIGHT: (C)2006,JPO&NCIPI