摘要
本文介绍一种性能优良的双增益对数中频放大器，此电路可用于动目标显示雷达接收机，着重对电路特点和调试方法进行了讨论，同时给出了单级电路图和调试后的整机输出特性曲线。
This paper presents a good double gained logarithmic IF amplifier. It can be used for the radar receiver that displays the moving target. The circuit property and the adjusting method are discussed in this paper. It also provides the unistage circuit diagram and the total output characteristic.
关键词
增益
对数放大器
中频放大器
放大器
接收机
gain
logarithmic amplifier
intermediate-freuency amplifier
anti-saturated circuit
dynamic range
amplitude characteristic
fraguency characteristic
