Method of configuring channel filters of microwave multiplexers with common summing waveguide

A method is proposed that allows independent optimization of the experimental characteristics (tuning) of channel filters included in microwave multiplexers with a common summing waveguide. It is shown that connecting an optimally selected transforming circuit to the output of a channel filter makes it possible to simulate its operation as part of a multiplexer. The method implements the software capabilities of modern vector network analyzers, which allow real-time output of the frequency characteristics of the connection of the measured filter with a virtual transforming circuit. The method was successfully tested when setting up channel filters for a prototype three-channel waveguide multiplexer/ X-band frequencies.