Transverse electric scattering from a gap on a circular waveguide

Electromagnetic transverse electric wave scattering from a circumferential gap on a conducting circular waveguide is theoretically investigated. The F ourier transform/series technique is used to constitute a set of simultaneo us equations for the discrete modal coefficients. Residue calculus is appli ed to obtain a fast-convergent series solution that is amenable to the nume rical computations. Extensive calculations are performed to examine the eff ects of a gap on the radiation and scattering.