Title :
Multilayer anisotropic dielectric grating waveguides
Author :
Silva, Nildsen Fernando Lisboa da ; Giarola, Attílio JosÉ ; Costa, João Crisóstomo Weyl Albuquerque
Author_Institution :
Sch. of Electr. & Comput. Eng, State Univ. of Campinas, Sao Paulo, Brazil
Abstract :
Frequency selective characteristics of multilayer anisotropic dielectric grating waveguides are analyzed here, having in mind their use as dichroic surfaces in the millimeter waveband. The rigorous formulation described by Costa and Giarola [1993-96] is extended to include biaxial anisotropic dielectrics with their optical axes aligned with the coordinate axes. Numerical results are shown for a sinusoidally varying dielectric constant in the grating. The effect of the dielectric anisotropy square ratio on the resonance anomalies of the diffraction curves is carefully investigated
Keywords :
dielectric waveguides; diffraction gratings; frequency selective surfaces; millimetre wave devices; permittivity; biaxial anisotropic dielectrics; coordinate axes; dichroic surfaces; dielectric anisotropy square ratio; diffraction curves; frequency selective characteristics; millimeter waveband; multilayer anisotropic dielectric grating waveguides; optical axes; resonance anomalies; sinusoidally varying dielectric constant; Anisotropic magnetoresistance; Dielectric constant; Frequency; Geometrical optics; Gratings; Nonhomogeneous media; Optical surface waves; Optical waveguides; Resonance; Surface waves;
Conference_Titel :
Microwave and Optoelectronics Conference, 1997. Linking to the Next Century. Proceedings., 1997 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
0-7803-4165-1
DOI :
10.1109/SBMOMO.1997.648788
