Title :
Strongly near-singular integral evaluation for curvilinear elements
Author :
Vipiana, F. ; Wilton, D.R. ; Johnson, W.A.
Author_Institution :
Antenna & EMC Lab., Politec. di Torino, Turino, Italy
Abstract :
This paper presents the numerical solution of strongly near-singular integrals, involving the gradient of Helmholtz-type potentials, defined over curvilinear elements. The proposed numerical integration scheme is based on appropriate variable transformations able to exactly cancel the nearly singular kernel.
Keywords :
gradient methods; integration; transforms; Helmholtz-type gradient potential; curvilinear element; nearly singular kernel; numerical integration scheme; strongly near-singular integral evaluation; Antennas; Electronic mail; Europe; Integral equations; Kernel; Mathematical model; Curvilinear Elements; Magnetic Field Integral Equation; Method of Moments; Singular Integrals;
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
DOI :
10.1109/EuCAP.2012.6206557
