Title :
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
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;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276789
