Title :
Scattering effects in the dielectric slab waveguide caused by electrically dissipative or active regions
Author :
Livernois, Thomas G. ; Nyquist, Dennis P. ; Cloud, Michael J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
A polarization electric field integral equation (EFIE) is used to model conducting discontinuities in a dielectric slab waveguide. A complex refractive index rigorously accounts for the effects of conduction current in the discontinuity region. Both dissipative and active cases are treated. Power balance, based on Poynting´s theorem, is used to determine the fractional radiated power in each case. The method of moments is invoked to solve the integral equation. The accuracy of the analysis method is confirmed through comparison of results for the air gap case with those of previously published methods. Numerical results illustrate an application to a typical GaAs ternary system
Keywords :
dielectric waveguides; electromagnetic wave scattering; integral equations; refractive index; waveguide theory; GaAs ternary system; Poynting´s theorem; active regions; complex refractive index; conducting discontinuities modelling; conduction current; dielectric slab waveguide; electrically dissipative regions; fractional radiated power; integral equation; moments method; polarization electric field integral equation; scattering effects; Dielectrics; Diodes; Frequency estimation; Integral equations; Moment methods; Optical polarization; Scattering; Slabs; Waveguide components; Waveguide discontinuities;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
