Considerations on double exponential-based cubatures for the computation of weakly singular Galerkin inner products

Highly accurate and efficient cubatures based on the double exponential quadrature rules are presented for the computation of weakly singular integrals arising in Galerkin mixed potential integral equation formulations. Due to their unique ability to handle non-smooth kernels, the proposed integration schemes can safely replace (in a "plug-n-play" sense) the traditional Gauss-Legendre rules in the existing singularity cancellation and singularity subtraction methods. Numerical examples using RWG basis functions confirm the excellent performance of the proposed method.


Published in:
IEEE Transactions on Antennas and Propagation, 60, 5, 2579-2582
Year:
2012
Publisher:
Institute of Electrical and Electronics Engineers
ISSN:
0018-926X
Keywords:
Laboratories:




 Record created 2010-10-26, last modified 2018-03-17

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