TY - GEN
T1 - Directive source integral equation
AU - Boag, A.
PY - 2012
Y1 - 2012
N2 - A directive source integral equation (DSIE) approach is proposed for the analysis of scattering from essentially convex impenetrable objects. The DSIE augments the conventional equivalent sources located on the surface with fictitious electric and magnetic currents placed inside the volume originally occupied by the scatterer. These electric and magnetic currents are designed to absorb and suppress the radiation of the on-surface equivalent sources towards the interior of the scatterer. Introduction of such artificial absorbing shields is advocated to confine the field interactions to the scatterer surface and reduce the coupling between the distant parts of the object, thus facilitating development of fast solvers. The DSIE also resolves the non-uniqueness problem of the electric and magnetic field integral equations by eliminating the internal resonances.
AB - A directive source integral equation (DSIE) approach is proposed for the analysis of scattering from essentially convex impenetrable objects. The DSIE augments the conventional equivalent sources located on the surface with fictitious electric and magnetic currents placed inside the volume originally occupied by the scatterer. These electric and magnetic currents are designed to absorb and suppress the radiation of the on-surface equivalent sources towards the interior of the scatterer. Introduction of such artificial absorbing shields is advocated to confine the field interactions to the scatterer surface and reduce the coupling between the distant parts of the object, thus facilitating development of fast solvers. The DSIE also resolves the non-uniqueness problem of the electric and magnetic field integral equations by eliminating the internal resonances.
UR - http://www.scopus.com/inward/record.url?scp=84868290760&partnerID=8YFLogxK
U2 - 10.1109/ICEAA.2012.6328796
DO - 10.1109/ICEAA.2012.6328796
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AN - SCOPUS:84868290760
SN - 9781467303354
T3 - Proceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, ICEAA'12
SP - 1108
EP - 1109
BT - Proceedings of the 2012 International Conference on Electromagnetics in Advanced Applications, ICEAA'12
T2 - 2012 14th International Conference on Electromagnetics in Advanced Applications, ICEAA 2012
Y2 - 2 September 2012 through 7 September 2012
ER -