Modeling of cascaded coplanar waveguide discontinuities by the mode-matching approach
- 1 January 1995
- journal article
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 43 (12), 2910-2917
- https://doi.org/10.1109/22.475655
Abstract
Cascaded coplanar waveguide discontinuities with transverse dimensions in the order of some micrometers are analyzed by the mode-matching and generalized scattering matrix method. This approach permits a full-wave analysis of the electromagnetic field also in the metallic regions, Compared with full-wave analysis assuming perfect conductors and a subsequent loss computation based on the surface impedance model the accuracy is considerably enhanced. The mode-matching method is revisited in the context of a network representation of discontinuities. The implications of Tellegen's general network theorem on the mode-matching method, particularly on the testing functions, are investigated, Furthermore, the mode-matching method is related to the equivalence principle applied to discontinuites and to the continuity condition of voltage and current of quasi-TEM waves in the static approximation.Keywords
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