测量散射参数的交互换位双信号方法及其应用

The Interchanged“Two-Signal”Method of Measuring Scattering Parameters and Its Application

叙述了外内向功率波复数比的测量方法，给出了散射参数测量的交互换位双信号测量线方法。用此方法测量了双栅ＧａＡｓＭＥＳＦＥＴ适用散射参数，并用它设计Ｓ波段混合集成双栅ＧａＡｓＭＥＳＦＥＴ可控增益放大器。测试结果与设计吻合。

This article describes a method of measuring the complex ratio of return power waves to incident power waves,and presents the interchanged 'two-signal' method of measuring the scattering parameters by slotted line.The measured applicable scattering parameters of dual-gate GaAs MESFET by this method are used to design S-band variable gain amplifiers. The measured results of the variable gain amplifier agree well with the designed ones.