Fine tuning of a millimetre-wave open resonator
Abstract
A method of tuning millimeter-wave resonators which is an alternative to the conventional procedure has been shown to improve sensitivity and ease of adjustment. A thin dielectric sheet is inserted progressively into the resonator, transversely to the axis, along a plane where the field of the standing wave is planar and at a maximum. The resulting perturbation produces the required frequency tuning. The extent to which the perturbation reduces the Q-factor and hence the sensivitity of frequency setting, the degree of linearity in the tuning action, the ability to vary the sensitivity of adjustment, the ease of applying theory to the situation, and the ease of practical operation are investigated. It is anticipated that the system will form the basis of a sensitive motion-reduction system.
- Publication:
-
Electronics Letters
- Pub Date:
- April 1982
- DOI:
- 10.1049/el:19820245
- Bibcode:
- 1982ElL....18..358L
- Keywords:
-
- Microwave Oscillators;
- Millimeter Waves;
- Resonators;
- Tuning;
- Dielectrics;
- Frequency Shift;
- Q Factors;
- Electronics and Electrical Engineering