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本文介绍的12.4～18千兆赫波导型吸收式PIN电调衰减器,是由六个PIN管相隔四分之一波长并联地安装在脊波导内构成的,其主要技术指标为:零偏置插入损耗<1分贝,最大衰减量>45分贝,零偏置电压驻波比<1.5,衰减的整个动态范围内最大电压驻波比<2。本文介绍了该PIN衰减器的方案、原理、设计和结构,介绍了自行考虑的等效电路参量的测量方法和测量结果,以及用[A]矩阵按我们比较完整的等效电路进行计算机辅助分析的方法和结果,最后给出了典型的实验曲线。
This article describes the 12.4 ~ 18 Gigahertz absorption type PIN electrical attenuator attenuator, is composed of six PIN tubes separated by a quarter of a quarter wavelength ridge waveguide structure, the main technical indicators: zero-offset insertion Loss <1 dB, maximum attenuation> 45 dB, zero bias VSWR <1.5, maximum voltage standing wave ratio <2 over the entire dynamic range of attenuation. This paper introduces the PIN attenuator scheme, principle, design and structure, describes the self-equivalent method of measuring the equivalent circuit parameters and measurement results, as well as [A] matrix by our more complete equivalent circuit for computer-aided analysis The method and the result, finally gives the typical experimental curve.