Title :
Generalized dispersion analysis and spurious modes of 2-D and 3-D TLM formulations
Author :
Nielsen, John S. ; Hoefer, Wolfgang J R
Author_Institution :
Lockheed Canada Inc., Stittsville, Ont., Canada
fDate :
8/1/1993 12:00:00 AM
Abstract :
The general dispersion relations are derived for the 2-D TLM shunt and series meshes and the 3-D TLM expanded and condensed node meshes. Implicit in the resulting dispersion relations are both their physical and spurious modal solutions. It is demonstrated that of the four schemes, only the 3-D expanded node mesh is free of detrimental spurious solutions
Keywords :
S-matrix theory; dispersion relations; electromagnetic field theory; transmission line theory; 2D TLM series meshes; 2D TLM shunt meshes; 3D TLM condensed node meshes; 3D TLM expanded node meshes; dispersion relations; generalized dispersion analysis; spurious modal solutions; spurious modes; transmission line matrix; Dispersion; Electromagnetic fields; Electromagnetic scattering; Equivalent circuits; Finite difference methods; Finite element methods; Frequency; Maxwell equations; Transmission line matrix methods; Transmission line theory;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
