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A variational calculation for higher order mode cutoff frequencies of a symmetrical strip line by conformal mapping
Author(s) -
Yang Hyunkieu,
Lee Sangseol
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10206
Subject(s) - conformal map , finite element method , cutoff , line (geometry) , mathematical analysis , microwave , mode (computer interface) , transverse plane , cutoff frequency , order (exchange) , mathematics , physics , geometry , optics , engineering , computer science , structural engineering , quantum mechanics , finance , thermodynamics , operating system , economics
The cutoff frequencies of higher order modes in a symmetrical strip line are calculated using the variational finite‐element method combined with conformal mapping. Conformal mapping is used to improve the modeling of the infinite transverse extents of a strip line. Then the finite‐element method is employed to solve the variational equation in the transformed finite region. Comparisons with numerical results found in the literature validate the presented method. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 32: 449–452, 2002.