Design concepts for microwave GaAs FET active filters

摘要

A comprehensive history of microwave active filter development to date is given. A design methodology is presented for the realization of precision broadband filters in the face of problems such as the nonideal behavior of microwave GaAs FETs and the low Q and related parasitic effects of monolithic-microwave-integrated-circuit (MMIC) inductors and capacitors. The feasibility of this approach is illustrated by the computer-simulated design of a cascadable, second-order microwave bandpass filter.