Time domain solutions for scattering from objects in a waveguide

Calculations that describe scattering from an object in a waveguide in the frequency domain are very time consuming. For the time domain it can be orders of magnitude more expensive both in time and storage than for the frequency domain, rendering such calculations impractical unless a supercomputer can be used. The solution of scattering from an object for a realistic target and waveguide using the Cray 2 computer (a 528‐Megaword, 4.1‐ns machine) at the Minnesota Supercomputer Institute is discussed. The methods employed as well as results will be presented.