C波段高隔离度调制器的研究

Study on a C Band Modulator with High Isolation

介绍了一种采用混合集成电路工艺制作的隔离度大于１００ｄＢ的高隔离Ｃ波段ＰＩＮ调制器，讨论了隔离度与ＰＩＮ管级数及腔体结构的关系，提出了提高通断比的关键途径。其主要技术指标为：ｆ＝５．４～５．８ＧＨｚ，插损＜３．０ｄＢ，隔离度＞１００ｄＢ，上升沿、下降沿时间＜６０ｎｓ。

This paper introduces a high isolation C band PIN modulator with I SO >100dB by HIC process.The dependence of isolation on PIN diodes level and antrum style is discussed,and the key ways to highten the isolation is provided.the PIN modulators main technical figures are f=5 4～5 8GHz, IL <3 0dB I SO >100dB,t r、t f<60ns