微波放大器温度补偿电路图1所示的电路可以为微波放大器的电路增益提供温度补偿,并且在放大器的工作温度范围(-40～+60℃)提供3个自由度。为了提供温度补偿,该电路向PIN二极管送出一个控制信号。PIN二极管是与放大器的主信号通路相串连,当流经PIN二极管的电流增加时,二极管的衰减量增大;而电流减少时,衰减量下降。 Microwave Amplifier Temperature Compensation Circuit The circuit shown in Figure 1 provides temperature compensation for the microwave amplifier’s circuit gain and provides three degrees of freedom over the amplifier’s operating temperature range (-40 to + 60 ° C). In order to provide temperature compensation, the circuit sends a control signal to the PIN diode. The PIN diode is connected in series with the main signal path of the amplifier. As the current through the PIN diode increases, the diode attenuation increases, while the current decreases, the attenuation decreases.