| 摘要 |
PROBLEM TO BE SOLVED: To stably operate a high-frequency receiver even at the time of great input level by suppressing the input level of a direct detection circuit into level, without causing pulling. SOLUTION: This receiver has plural gain control circuits 1, 2 and 3 on the prestage and a limiter circuit 10 for fixing at least a part of gain of the gain control circuits 1, 2 and 3, when the gain is higher than a specified input level. |
