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2D finite‐difference frequency‐domain method and its application for dispersion characteristic analysis of ferrite devices
Author(s) -
Munir Achmad,
Kubo Hiroshi,
Sanada Atsushi,
Awai Ikuo
Publication year - 2004
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.20163
Subject(s) - ferrite (magnet) , finite difference time domain method , microwave , finite difference method , finite difference , boundary value problem , mathematical analysis , eigenvalues and eigenvectors , frequency domain , dispersion (optics) , mathematics , materials science , electronic engineering , computer science , engineering , physics , optics , composite material , telecommunications , quantum mechanics
In this paper, a two dimensional (2D) finite‐difference frequency‐domain (FDFD) method is applied to analyze the dispersion characteristics of ferrite devices. The FDFD formulation for ferrite devices is built from the integral form of Maxwell's equations. After implementing all the boundary conditions, the finite‐difference formulation is concluded as an eigen equation and then constructed by a highly sparse matrix. By solving the matrix‐eigen equation, the dispersion characteristics of ferrite devices for a given frequency can be obtained. In order to verify the validity of the proposed method, an infinite ferrite‐filled waveguide is examined and the numerical results are compared to both the theoretical result and the 3D finite‐difference time‐domain (FDTD) numerical result. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 437–439, 2004; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/mop.20163