Title :
Scattering at a nonchiral-chiral interface in a coaxial waveguide
Author :
Shen, Zhongxiang ; Macphie, Robert H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
7/1/1998 12:00:00 AM
Abstract :
A formally exact full-wave solution is presented for the problem of scattering at a nonchiral-chiral interface in a coaxial waveguide. The field components for the axisymmetric modes in a coaxial chirowaveguide are initially obtained. A new orthogonality relation for the modes is then proposed and used to find expansion coefficients for the electromagnetic fields in the coaxial chirowaveguide. The scattering matrix for the nonchiral-chiral dielectric discontinuity in a coaxial waveguide is finally derived by enforcing the continuity conditions of the tangential field components across the interface. Numerical results for the reflection and transmission coefficients at the nonchiral-chiral interface in a coaxial waveguide are presented
Keywords :
S-matrix theory; chirowaveguides; coaxial waveguides; waveguide discontinuities; waveguide theory; axisymmetric modes; coaxial waveguide; continuity conditions; dielectric discontinuity; electromagnetic fields; expansion coefficients; full-wave solution; nonchiral-chiral interface; orthogonality relation; reflection coefficients; scattering; scattering matrix; tangential field components; transmission coefficients; Coaxial components; Dielectric materials; Electromagnetic fields; Electromagnetic scattering; Electromagnetic waveguides; Optical reflection; Optical scattering; Optical waveguides; Transmission line matrix methods; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
