Title :
Group and phase velocities in the TLM-symmetrical-condensed node mesh
Author :
Morente, Juan A. ; Giménez, Gonzalo ; Portí, Jorge A. ; Khalladi, Mohsine
Author_Institution :
Dept. de Fisica Aplicada, Granada Univ., Spain
fDate :
3/1/1994 12:00:00 AM
Abstract :
This paper presents the analytical expressions of group and phase velocities as a function of frequency in the TLM-symmetrical-condensed node mesh for the three fundamental directions. The direction [1, 1, 1] happens to be more dispersive than the directions [1, 1, 0] and [1, 0, 0], giving the TLM-symmetrical-condensed formulation dispersion characteristics similar to those of the FD-TD algorithm with a Courant number of 1/√3
Keywords :
dispersion (wave); electromagnetic wave scattering; mesh generation; radiowave propagation; transmission line theory; EM wave propagation; TLM-symmetrical-condensed node mesh; dispersion characteristics; dispersive directions; group velocities; phase velocities; transmission line modelling; Boundary conditions; Cutoff frequency; Dispersion; Helium; Lattices; Propagation constant; Sampling methods; Scattering; Stability; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
