ELECTROMAGNETIC PENETRATION INTO A DIELECTRIC-FILLED CONDUCTING SHELLOF ARBITRARY CROSS-SECTION THROUGH AN INFINITE SLOT - TE CASE

A numerical solution is given for the problem of electromagnetic field penetration into and scattering from a slotted conducting cylinder of arbitrary cross section filled with a homogeneous dielectric material . The equivalence principle is employed to replace the conducting shel l and the dielectric with equivalent surface currents radiating in unb ounded media. The boundary condition on the electric field in the equi valent problems is used to obtain the electric field equation formulat ion of the problem. Method of moments with pulse expansion and testing procedure is applied to the resulting integral equations. Computed re sults are presented for TE plane wave excitation and include current d istributions, internal fields, and echo widths.