Iterative physical-optics formulation for analyzing large waveguides with lossy walls

A generalization of the iterative physical-optics (IPO) method is presented here in order to extend its scope of application to cavities with nonperfe ctly conducting walls. The behavior of thr method is illustrated for the pr oblem of a parallel-plate waveguide. A pictorial display of the energy flow inside the waveguide is obtained allowing Irs to attempt a deep understand ing of the method illustrating its behavior with the number of iterations. and demonstrating: its great accuracy by comparison with ray-based and moda l reference solutions. (C) 2001 John Wiley & Sons, Inc.