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Scattering by two and three spheres computed by the generalized multipole technique

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1 Author(s)
Ludwig, A.C. ; Gen. Res. Corp., Santa Barbara, CA, USA

An analytic solution to the problem of scattering by multiple spheres was given by J.H. Bruning and Y.T. Lo (ibid., vol.AP-19, p.378-90 and 391-8, May 1971). Results from this analytic solution are compared to results obtained using the generalized multipole technique (GMT), a numerical method that uses vector spherical harmonics as basis functions. The boundary conditions are imposed at a discrete set of points and the solution is obtained by numerically inverting a system of linear equations. The problem is particularly well suited to the GMT because the surfaces are very smooth

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Antennas and Propagation, IEEE Transactions on  (Volume:39 ,  Issue: 5 )