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Accurate and Efficient Computation of the Modal Green's Function Arising in the Electric-Field Integral Equation for a Body of Revolution

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3 Author(s)
Vaessen, J.-P.A.H.M. ; Dept. of Electr. Eng./Electromagn., Eindhoven Univ. of Technol., Eindhoven, Netherlands ; Van Beurden, M.C. ; Tijhuis, A.G.

We present a computationally efficient way to compute the modal Green's function arising in the electric-field integral equation for a body of revolution. The computation of this function is time consuming due to its singular and oscillating nature, especially for high Fourier-mode indices. Efficient and accurate computation of this function is important to arrive at a fast numerical method for analyzing the scattering problem of a body of revolution. We compute the modal Green's function up to machine precision in a well-controlled way with limited effort, even for large bodies.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:60 ,  Issue: 7 )