Magnetostatic wave temperature coefficients
Abstract
The design and applications of epitaxial yttrim iron garnet (YIG) magnetostatic wave devices will depend upon the variation of the device characteristics versus temperature. A theoretical expression of the delay line oscillator frequency temperature coefficient has been calculated for the three kinds of magnetostatic waves and a comparison between theoretical and experimental results has been done. Temperature stabilization of the frequency of a magnetostatic forward volume wave delay line oscillator has been obtained through the use of a permanent bias magnet made of magnetic materials with a suitable temperature coefficient. Its center frequency of 7.665 GHz is stable to within + or - 1 MHz over the temperature range extending from + 46 C to + III C.
- Publication:
-
Proceedings of the RADC Microwave Magnetics Technology Workshop
- Pub Date:
- January 1983
- Bibcode:
- 1983radc.proc..178C
- Keywords:
-
- Frequencies;
- Magnetostatics;
- Oscillators;
- Temperature Measurement;
- Yttrium-Iron Garnet;
- Amplitudes;
- Delay Lines;
- Feedback Control;
- Magnetic Fields;
- Microwaves;
- Communications and Radar