ULTRAWIDEBAND ABSORBING BOUNDARY-CONDITION FOR TERMINATION OF WAVE-GUIDING STRUCTURES IN FD-TD SIMULATIONS

Authors
REUTER CE JOSEPH RM THIELE ET KATZ DS TAFLOVE A
Citation
Ce. Reuter et al., ULTRAWIDEBAND ABSORBING BOUNDARY-CONDITION FOR TERMINATION OF WAVE-GUIDING STRUCTURES IN FD-TD SIMULATIONS, IEEE microwave and guided wave letters, 4(10), 1994, pp. 344-346
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE microwave and guided wave letters → ACNP
ISSN journal
10518207
Volume
4
Issue
10
Year of publication
1994
Pages
344 - 346
Database
ISI
SICI code
1051-8207(1994)4:10<344:UABFTO>2.0.ZU;2-H
Abstract
A new method for ultrawideband termination of waveguides in finite-dif ference time-domain (FD-TD) grids is presented. The Berenger perfectly matched layer (PML) absorbing boundary condition is applied to termin ate both perfect electrically conducting (PEC) and dielectric waveguid es in two dimensions. Reflections of less than -75 dB are obtained ove r the entire propagation regime. Evidence is presented that the PML AB C is effective even for the evanescent energy present below cutoff in PEC waveguides and the multimode propagation present in dielectric wav eguides.