Title :
Accurate and conforming mixed discretization of the chiral müller equation
Author :
Beghein, Yves ; Cools, Kristof ; Andriulli, Francesco P. ; De Zutter, Daniël ; Michielssen, Eric
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium
Abstract :
Scattering of time-harmonic fields by chiral objects can be modeled by a second kind boundary integral equation, similar to Müller´s equation for scattering by nonchiral penetrable objects. In this contribution, a mixed discretization scheme for the chiral Müller equation is introduced using both Rao-Wilton-Glisson and Buffa-Christiansen funtions. It is shown that this mixed discretization yields more accurate solutions than classical discretizations, and that they can be computed in a limited number of iterations using Krylov type solvers.
Keywords :
boundary integral equations; chirality; electromagnetic wave scattering; iterative methods; Buffa-Christiansen funtion; Krylov type solver; Rao-Wilton-Glisson funtion; chiral Müller equation; iteration method; mixed discretization scheme; nonchiral penetrable object scattering; second kind boundary integral equation; time-harmonic field scattering; Accuracy; Computational modeling; Equations; Integral equations; Mathematical model; Numerical models; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348568