Title :
Finite-Volume Maxwellian Absorber on Unstructured Grid
Author :
Sankaran, Krishnaswamy ; Fumeaux, Christophe ; Vahldieck, Rüdiger
Author_Institution :
Lab. for Electromagn. Field Theor. & Microwave Electron. - IFH, Swiss Fed. Inst. of Technol. - ETH Zurich
Abstract :
A novel finite-volume time-domain (FVTD) model for the Maxwellian absorber is presented to aid numerical simulations on unstructured grid. In the present approach all the electromagnetic (EM) field quantities are co-located in both space and time. Theoretical development of the co-located FVTD formulation and a practical application of the Maxwellian absorber as an unsplit perfectly matched layer (PML) for waveguide problems are presented. For variations of the angle of incidence from near normal to 50 degree, the reflection coefficient of the FVTD-Maxwellian absorber is lower than -40 dB
Keywords :
Maxwell equations; electromagnetic fields; electromagnetic wave absorption; finite volume methods; time-domain analysis; Maxwellian absorber; angle of incidence; computational electromagnetics; electromagnetic field; finite-volume time-domain model; numerical simulations; perfectly matched layer; reflection coefficient; unstructured grid; Dielectric losses; Electromagnetic field theory; Electromagnetic fields; Electromagnetic reflection; Finite difference methods; Laboratories; Maxwell equations; Numerical simulation; Perfectly matched layers; Time domain analysis; Computational Electromagnetics¿CEM; Finite-Volume Time-Domain¿FVTD; Maxwellian Absorber; Perfectly Matched Layer¿PML;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249422
