ANALYSIS AND SYNTHESIS OF A CLASS OF MICROWAVE FILTERS FROM 2-VARIABLE POINT-OF-VIEW

The following, which is related to the design of the microwave filters , is mainly presented: (1) certain useful approximation which can be o btained by double-resistive- terminated 2-ports consisting of a cascad e of two 1-variable 2-ports in different variables, and (2) an approac h for filter design from 2-variable viewpoint. Approximations presente d provide useful magnitude responses in 2-D domain. Hence it is discus sed that how the provided 2-D responses can be used for the design of the microwave filters. Furthermore, properties of the 2-variable trans fer functions resulting in such circuits are given.