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

fYear

2006

fDate

11-16 June 2006

Firstpage

169

Lastpage

172

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 ElectromagneticsÂ¿CEM; Finite-Volume Time-DomainÂ¿FVTD; Maxwellian Absorber; Perfectly Matched LayerÂ¿PML;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2006. IEEE MTT-S International

Conference_Location

San Francisco, CA

ISSN

0149-645X

Print_ISBN

0-7803-9541-7

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2006.249422

Filename

4014849