Method of moments solution of electrically large em scattering problems using numerically generated macro-basis functions - Preliminary results

In this work, we present a new method of moments solution procedure to obtain induced currents on a large conducting body due to a plane wave incidence. The procedure involves generating macro-basis functions defined over a large surface area as opposed to micro-basis functions in the conventional scheme. In fact, the new macro-basis function is generated as a linear combination of conventional micro-basis functions and unique to the problem at hand. The new approach is simple, efficient, can be easily applied to both antenna and scattering problems, and retains all the advantages of conventional method of moments scheme. Preliminary results involving two and three dimensional objects are presented to validate the numerical procedure.