Design of microwave diplexers based on new Kuroda´s identities

In this paper a procedure for the design of microwave diplexers in the printed circuit form is presented. The proposed procedure is based on the use of Richards´ frequency transformation and Kuroda´s identities. Kuroda´s identities can be used to obtain a suitable structure for practical realization. The design procedure is based on the use of single terminated filters with real transmission zeros. This procedure is verified on an example.