Title :
A novel wave-separation scheme for the extraction of S-parameters in non-TEM waveguides for the FVTD method
Author :
Baumann, D. ; Fumeaux, Christophe ; Vahldieck, R.
Author_Institution :
ETH Zurich, Switzerland
Abstract :
This paper proposes an extended scheme for the extraction of scattering parameters for the finite-volume time-domain (FVTD) method. The flux-splitting algorithm that is inherent to the FVTD method is exploited to compute the incident and reflected fields in a port. A novel correction scheme for the magnetic field is applied that yields accurate results of the scattering parameters in non-TEM structures by performing an artificial flux separation. Multimode S-parameters of a waveguide discontinuity, that are determined using the proposed approach, are successfully validated with a mode-matching analysis.
Keywords :
S-parameters; finite volume methods; mode matching; waveguide discontinuities; waveguide theory; S parameter; artificial flux separation; finite volume time domain method; flux splitting algorithm; incident fields; magnetic field; mode matching analysis; multimode S parameters; nonTEM waveguides; parameter extraction; reflected fields; wave separation scheme; waveguide discontinuity; Electromagnetic fields; Electromagnetic waveguides; Laboratories; Magnetic analysis; Magnetic fields; Maxwell equations; Microwave theory and techniques; Scattering parameters; Time domain analysis; Waveguide discontinuities;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516558
