Calculation and analysis for the quasi-optical biconical cavity in submillimeter band
Abstract
The performance characteristics of a quasi-optical biconical cavity (like that described by Gustinci, 1977) as a submm-wave receiver antenna are investigated theoretically. The distribution of EM fields in the loaded cavity is calculated; the relationship between cavity size and the input impedance and receiving coefficient is determined; and the conditions for impedance and beam-pattern matching are obtained. For a given divergence angle of the Gaussian beam, the maximum receiving coefficient is obtained with an opening 1.5 times the beam-waist diameter. Diagrams and graphs are provided.
- Publication:
-
Chinese Journal of Infrared Research
- Pub Date:
- June 1986
- Bibcode:
- 1986ChJIR...5...49H
- Keywords:
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- Cavity Resonators;
- Electrical Impedance;
- Electromagnetic Radiation;
- Optical Communication;
- Submillimeter Waves;
- Whiskers (Crystals);
- Antenna Radiation Patterns;
- Bessel Functions;
- Fourier Transformation;
- Optical Resonators;
- Radiation Distribution;
- Electronics and Electrical Engineering