A high-order locally corrected Nyström (LCN) method employing the mixed-order basis functions proposed by Çaltşkan and Peterson is presented for the electromagnetic scattering by targets composed of both dielectric and conducting bodies. An integral operator based on a combined field formulation for conducting surfaces and a Müller formulation for dielectric surfaces is used. It is found that for general scattering objects, mixed-order basis functions accelerate the convergence of the LCN solution, can eliminate spurious charges, and can significantly reduce the condition number of the impedance matrix.
|Number of pages||9|
|Journal||IEEE Transactions on Antennas and Propagation|
|State||Published - Nov 2004|
Bibliographical noteFunding Information:
Manuscript received October 27, 2003; revised January 28, 2004. This work was supported in part by the Defense Advanced Research Projects Agency (DARPA) under Grant MDA972-01-1-0022 and in part by the Army Research Office (ARO) under contract DAAD-19-99-1-0093.
- Electromagnetic scattering
- Integral equation methods
- Locally corrected Nyström (LCN) method
- Numerical analysis
ASJC Scopus subject areas
- Electrical and Electronic Engineering