A robust generalized DCIM technique with pole extraction

Abstract

We present a generalized DClM technique with an improved range of the spatial Green's functions by extracting the poles' contributions and using additional synthetic poles as the quasi-static image for the surface wave poles. The technique also includes an algorithm to extract the poles of the Green's function. The computational requirement of this algorithm was shown to be approximately equal to that of evaluating only one contour integral regardless of the number of poles to be extracted. Hence, this new technique is computationally efficient, robust and the Green's functions derived are also accurate over the entire range of /spl rho/.