Title :
A novel quasi-optical resonator for the surface near-millimeter waves
Author :
Kocharyan, Karen N. ; Afsar, Mohammed Nurul ; Avetissian, Yuri H. ; Sarkissian, Eveline L. ; Babajanian, A. ; Tkachov, Igor I.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Tufts Univ., Medford, MA, USA
fDate :
1/1/1999 12:00:00 AM
Abstract :
The theory and experimental investigations are presented for a new type of quasi-optical near-millimeter-wave prismatic resonator, which provides frequency selective transformation of the plane waves into the surface waves. Theoretical expressions are obtained for the Q-factor and finesse, which consider dielectric loss and the effect of prism finite aperture. The theoretical evaluations are verified by experimental measurements in the frequency range 300-500 GHz using a prismatic resonator made from the optical quality fused silica glass. The increase of intensity of surface waves by a factor of 10-25 is demonstrated for the prismatic resonator made from an extremely low-loss dielectric
Keywords :
Q-factor; dielectric losses; dielectric resonators; submillimetre wave devices; surface electromagnetic waves; 300 to 500 GHz; EHF; MM-wave prismatic resonator; Q-factor; dielectric loss; finesse; frequency selective transformation; low-loss dielectric; optical quality fused silica glass; plane waves; prism finite aperture; quasi-optical resonator; surface near-millimeter waves; Apertures; Dielectric losses; Dielectric measurements; Frequency measurement; Optical losses; Optical resonators; Optical surface waves; Q factor; Resonant frequency; Surface waves;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
