Title :
An improved compact 2-D finite-difference frequency-domain method for guided wave structures
Author :
Li, Ling-Yun ; Mao, Jun-Fa
Author_Institution :
Shanghai Jiao Tong Univ., China
Abstract :
An improved compact two-dimensional (2-D) finite-difference frequency-domain method is presented to determine the dispersion characteristics of guided wave structures. Eigenvalue equations that contain only two transverse electric field components are derived from Maxwell´s differential equations. Compared to the traditional 2-D FDFD containing four or six field components, both the order and number of nonzero elements of the coefficient matrix are reduced simultaneously. The method is verified by two application examples.
Keywords :
Maxwell equations; computational electromagnetics; eigenvalues and eigenfunctions; finite difference time-domain analysis; microstrip lines; rectangular waveguides; waveguide theory; compact 2-D FDTD method; differential Maxwell equations; dispersion characteristics; eigenvalue equations; empty rectangle waveguide; guided wave structures; nonzero elements; order reduction; shielded microstrip line; transverse electric field components; Dielectrics; Differential equations; Eigenvalues and eigenfunctions; Finite difference methods; Frequency domain analysis; Maxwell equations; Permittivity; Propagation constant; Time domain analysis; Two dimensional displays;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.819956
