MAGNETICALLY TUNED MICROWAVE OSCILLATOR USING THE YIG FILM AND ITS APPLICATIONS.

被引：0
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作者：
Tsutsumi, Makoto [1 ]
机构：
[1] Osaka Univ, Suita, Jpn, Osaka Univ, Suita, Jpn
来源：
Electronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi) | 1988年 / 71卷 / 05期
关键词：
CORRELATORS - MAGNETOSTATICS - YTTRIUM COMPOUNDS - Thin Films;
D O I：
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中图分类号：
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摘要：
Based on the fact that the magnetostatic mode in a YIG thin film depends on the direction of a dc magnetic field, a frequency-controllable oscillator is proposed. First, the dispersion and delay characteristics are analyzed theoretically for the magnetostatic wave in a YIG thin film magnetized in an arbitrary angle. Next, on both sides of a YIG thin film with a thickness of 13. 6 mu m and a size of 5 multiplied by 15 mm**2, ten metal strips are evaporated at a pitch of 1 mm. The filtering characteristics of this Bragg reflection reflection filter are then evaluated. Subsequently, this filter and an FET amplifier are combined to form an oscillator for 2 to 4 GHz. Measured results for the oscillation characteristics, output power and spectrum for different magnetic field directions are compared with theoretical results. Finally, as an application of this oscillator, a correlator is proposed and its operation is explained.
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页码：33 / 39
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