A generalized recursive algorithm for wave-scattering solutions in two dimensions

A generalized recursive algorithm valid for both the E/sub z/ and H/sub z/ wave scattering of densely packed scatterers in two dimensions is derived. This is unlike previously derived recursive algorithms which have been found to be valid only for E/sub z/ polarized waves. In this generalized recursive algorithm, a scatterer is first divided into N subscatterers. The n-subscatterer solution is then used to solve the (n+n')-subscatterer solution. The computational complexity of such an algorithm is found to be of O(N/sup 2/) in two dimensions while providing a solution valid for all angles of incidence. This is better than the method of moments with Gaussian elimination, which has an O(N/sup 3/) complexity.>