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Propagation characteristic analysis of ridged circular waveguide using 2D finite‐difference frequency‐domain method
Author(s) -
Zhang Qi,
Zhou Xilang,
Yi Huiyue
Publication year - 2005
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20086
Subject(s) - waveguide , microwave , finite difference , finite difference method , cylindrical coordinate system , finite difference time domain method , optics , mathematics , frequency domain , mathematical analysis , physics , acoustics , quantum mechanics
The propagation characteristics of ridged circular waveguides are analyzed by using 2D finite‐difference frequency‐domain (2D FDFD). Based on the 2D FDFD method in a cylindrical coordinate system, general difference formulas for the ridged circular waveguide are deduced, and modified difference formulas are built at some special points of the ridged circular waveguides. To verify the proposed method, three ridged circular waveguide structures are investigated and the numerical results are compared with available ones obtained by other research methods. © 2005 Wiley Periodicals, Inc. Int J RF and Microwave CAE 15, 2005.