Ka-band dual multiplexer with a connected channel

A new Ka-band dual multiplexer is presented, in which a channel filter is connected with two manifolds. The synthesis uses a network model combined with space mapping optimization technique with EM tools. The design procedures are included in this paper. The optimized dimensions and the simulated results are presented. The dual multiplexer is fabricated and tested. The tested results are in very good agreement with the simulated results.