| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna amplifier capable of saving components and space while holding stable signal levels. SOLUTION: An on-vehicle antenna amplifier for amplifying signals received by a plurality of antennas comprises an amplifier for amplifying a signal received by the corresponding antenna and a gain control part for outputting a control signal for controlling the signal gain of the antenna on the basis of the signal level of a signal output from the corresponding amplifier in each of the plurality of antennas, and a plurality of combinations of the amplifiers and the gain control parts are constituted on one substrate. COPYRIGHT: (C)2007,JPO&INPIT
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