Abstract

AbstractThe generalized scattering matrix (GSM) technique, which is a convenient method for analyzing complex microwave devices, consisting of separable and longitudinally uniform waveguiding structures, is presented in this article. GSM differs from the conventional scattering matrix used in circuit theory or microwave network theory in that it is extended to consider evanescent as well as propagating modes in each waveguide. Some numerical examples are provided to illustrate the importance of the inclusion of higher‐order modes for generating accurate solutions of waveguide discontinuity problems.

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