An improved 2D-FDTD algorithm for hybrid mode analysis of quasi-planar transmission lines

Author

Xiao, S. ; Vahldieck, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

fYear

1993

Firstpage

421

Abstract

A significantly improved two-dimensional finite-difference time-domain (FDTD) method is proposed for the full-wave analysis of guided wave structures. By using a phase shift beta Delta z along the z-direction (propagation direction) and assuming the limiting case of Delta z, the propagation constant of hybrid modes can be calculated by using a two-dimensional mesh with a truly two-dimensional grid size. By appropriately arranging variables, only a real impulse response is involved. A novel grading scheme allowing a gradually nonequidistant mesh in three dimensions is introduced.<>

Keywords

finite difference time-domain analysis; waveguide theory; 2D-FDTD; full-wave analysis; guided wave structures; hybrid mode analysis; impulse response; nonequidistant mesh; propagation constant; propagation direction; quasi-planar transmission lines; two-dimensional grid size; two-dimensional mesh; Algorithm design and analysis; Convergence; Finite difference methods; Lattices; Microwave communication; Microwave propagation; Microwave theory and techniques; Propagation constant; Time domain analysis; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1993., IEEE MTT-S International

Conference_Location

Atlanta, GA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1209-0

Type

conf

DOI

10.1109/MWSYM.1993.276789

Filename

276789