Scattering from a small hole: verification of Collin's predictions from Bethe's theory

Leaky fields from damaged shields

“…The question we are most interested in is what fields propagate from the inside to the outside of the cable when there is a hole in the shield Bethe developed rigorous mathematical expressions to describe fields leaking through a small hole between two cavities [17]. Bethe's theory was applied to waveguides and validated by additional studies [18]- [19]. Two waveguides were placed parallel to each other with a small hole connecting the two.…”