Fast location and accurate computation of higher order, evanescent, and complex modes in unilateral fin lines

Tahar Kezai; Andre Vander Vorst

doi:10.1117/12.224216

13 October 1995 Fast location and accurate computation of higher order, evanescent, and complex modes in unilateral fin lines

Tahar Kezai, Andre Vander Vorst

Author Affiliations +

Proceedings Volume 2558, Millimeter and Submillimeter Waves II; (1995) https://doi.org/10.1117/12.224216
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Shielded multilayered structures are commonly used in MIC circuits up to 140 GHz. This paper describes an original method to accurately calculate the complex propagation constant of shielded multilayered structures with minimal computational effort. The method combines singular value decomposition and poles location technique. In order to construct the complete spectrum of the multilayered structure, the poles detected are used to ensure that no modes are missed. It is shown that this accurate method elimiates difficulties related to poles and steep gradients in finding the complex propagation constant of the multilayered structure. Numerical results are compared first to those calculated by zero detection method and second to data obtained by singular integral equation.

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Tahar Kezai and Andre Vander Vorst "Fast location and accurate computation of higher order, evanescent, and complex modes in unilateral fin lines", Proc. SPIE 2558, Millimeter and Submillimeter Waves II, (13 October 1995); https://doi.org/10.1117/12.224216

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