Title :
Radiation and absorption losses of the whispering-gallery-mode dielectric resonators excited by a dielectric waveguide
Author :
Boriskina, Svetlana V. ; Nosich, Alexander I.
Author_Institution :
Dept. of Radio Phys., Kharkov State Univ., Ukraine
fDate :
2/1/1999 12:00:00 AM
Abstract :
The scattering of a surface wave of a dielectric layer backed by a ground plane from the whispering-gallery-mode dielectric resonators is considered by use of the surface potential approach and analytical regularization. Efficient numerical algorithms have been developed with applications to the bandstop filter design. Transmitted and reflected power fractions and radiation and absorption losses are calculated and compared for two alternative field polarizations. The effect of excitation of the higher order modes of the waveguide is also studied
Keywords :
band-stop filters; dielectric resonators; dielectric waveguides; electromagnetic wave polarisation; electromagnetic wave scattering; losses; passive filters; surface electromagnetic waves; surface potential; WGM dielectric resonators; absorption losses; analytical regularization; bandstop filter design; dielectric layer; dielectric waveguide excitor; field polarizations; ground plane; higher order modes; numerical algorithms; radiation losses; reflected power fractions; surface potential approach; surface wave scattering; transmitted power fractions; whispering-gallery-mode; Absorption; Dielectric losses; Optical filters; Optical resonators; Optical scattering; Optical surface waves; Optical waveguides; Planar waveguides; Resonator filters; Surface waves;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
