Bounds on the Elements of the Equivalent Network for Scattering in Waveguides Ⅱ. Application to Dielectric Obstacles

摘要

The theory developed in the companion article for obtaining rigorous bounds on cotη, whereηis the phase shift, is applied to scattering by dielectric obstacles in rectangular waveguides. For the obstacles considered here, bounds are also obtained on the phase shifts directly and on the elements of the equivalent ‘T' network. The exact solution for a dielectric slab of finite length which extends to the conducting boundaries of the waveguide and completely encloses the obstacle is introduced as a convenient trial function.