Title :
Multiple mode analysis of waveguides using compact FDTD
Author :
Asi, A. ; Shafai, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
fDate :
June 28 1993-July 2 1993
Abstract :
A traditionally three-dimensional task of dispersion analysis of guided wave structures has been solved by a novel two-dimensional technique called the Compact FDTD (finite-difference time-domain). It not only possesses the versatility of any time domain method but also offers the speed and accuracy of most other analytical techniques. Since a two-dimensional lattice is used as the computational space, the required CPU time and RAM space can be kept affordable even for a personal computer. Two examples of its application are presented. The first is the problem of the hollow rectangular waveguide, for which the analytical solution is readily available. The second is the solution of a more complex case, a boxed microstrip line on sapphire which can be considered as an inhomogeneous anisotropic guided wave structure.<>
Keywords :
computational complexity; dispersion (wave); electromagnetic wave propagation; finite difference time-domain analysis; microstrip lines; rectangular waveguides; sapphire; CPU time; RAM space; accuracy; boxed microstrip line on sapphire; compact FDTD; dispersion analysis; finite-difference time-domain; guided wave structures; hollow rectangular waveguide; speed; two-dimensional lattice; versatility; Anisotropic magnetoresistance; Application software; Finite difference methods; Hollow waveguides; Lattices; Microcomputers; Microstrip; Read-write memory; Rectangular waveguides; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385331
