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Multipole theory analysis of cutoff wavenumbers of waveguides partially filled with dielectric
Author(s) -
Zheng Qinhong,
Xie Fuyao,
Liang Li,
Wang Ruili,
Ou Jiaming
Publication year - 2000
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/(sici)1098-2760(20000620)25:6<397::aid-mop11>3.0.co;2-1
Subject(s) - multipole expansion , wavenumber , cutoff , computation , eigenvalues and eigenvectors , waveguide , microwave , dielectric , cutoff frequency , fast multipole method , physics , computational physics , optics , mathematics , quantum mechanics , algorithm
A new approach, the multipole theory (MT) method, is presented for the computation of cutoff wavenumbers of waveguides partially filled with dielectric. The MT formulation of the eigenvalue problem of an inhomogeneous waveguide is derived. Representative computational examples, including dielectric‐rod‐loaded rectangular and double‐ridged waveguides, are given to validate the theory, and to demonstrate the degree of its efficiency. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 25: 397–400, 2000.