采用负阻电路的大调频范围GaAsMMIC压控带通有源滤波器

A GaAs MMIC Realization of Large Tuning-Range Voltage-controlled Active Bandpass Filter Using Negative Resistance Circuit

采用负阻电路以及我们自行构造的模型设计的集成化平面肖特基变容管，用GaAsMMIC技术实现了L波段大调频范围压控带通滤波器该滤波器具有200MHk的3dB带宽，调频范围1．64GHz～1．0GHz、计约600MHz并具有足够的带外抑制比．全部偏置电路均在片上，芯片共占面积1．6×1．8mm2．

A second order large tuning-range bandpass active filter has been developed with GaAs MMIC technique using negative resistance circuits and integrated planar Schottky diodes designed by ourselves. The filter has a 200MHz 3 dB-bandwidth and a 600MHz tuning-range of centre freqency, from 1. 6GHz to 1GHz, and occupies an area of 1. 6 ×1. 8mm2 on the wafer including all biasing elements.