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Dual‐surface combined‐field integral equation for three‐dimensional scattering
Author(s) -
Prakash V. V. S.,
Mittra Raj
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1159
Subject(s) - integral equation , scattering , electric field integral equation , surface (topology) , field (mathematics) , mathematical analysis , convergence (economics) , surface integral , physics , cube (algebra) , plane (geometry) , plane wave , mathematics , optics , geometry , pure mathematics , economic growth , economics
Abstract In this paper, a dual‐surface combined‐field integral equation (DS–CFIE) formulation is presented for computing electromagnetic scattering from perfectly conducting arbitrary three‐dimensional (3‐D) bodies. The formulation has the advantage that it does not suffer from the internal resonance problem associated with the closed cavity modes. Convergence is typically obtained in a few iterations, and the formulation is relatively insensitive to the location of the virtual surface. Numerical results are presented for the case of plane‐wave scattering from a conducting sphere and a cube to validate the present approach. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 293–296, 2001.