Design of manifold multiplexers in all-inductive dual-mode rectangular waveguide technology using the coupling matrix formalism

©2016. American Geophysical Union. All Rights Reserved. This paper presents for the first time the design of manifold multiplexers in waveguide technology using all-inductive dual-mode channel filters. It is shown that very complex transfer functions can be implemented for the channels, using simple structures that can be analyzed and manufactured with increased simplicity as compared to other commercial solutions. In this paper we adapt a standard design technique for manifold multiplexers to the new proposed technology. The paper is illustrated with the design of two triplexers, using H-type and E-type waveguide manifolds, with filters implementing two transmission zeros in the insertion loss response for maximum isolation between channels. Results show that the procedure is indeed effective and can be used for the design of practical multiplexer configurations.