DocumentCode
974289
Title
Experimental Observation of Frequency Locking and Noise Reduction in a Self-Injection-Locked Magnetron
Author
Choi, Jin Joo ; Choi, Gil Wong
Author_Institution
Kwangwoon Univ., Seoul
Volume
54
Issue
12
fYear
2007
Firstpage
3430
Lastpage
3432
Abstract
We report an experimental observation of frequency locking and noise reduction in a self-injection-locked magnetron oscillator operating at 2.455 GHz. Part of the magnetron output signal is injected into the magnetron through a feedback loop to lock the oscillation frequency. A frequency-tunable high- cavity is placed in the feedback loop to tune the locked frequency. Experimental results show a noise reduction by more than 13 dB at 1 MHz offset and a frequency tuning bandwidth of 0.12% at a center frequency of 2.455 GHz.
Keywords
frequency locked loops; magnetrons; oscillators; frequency 1 MHz; frequency 2.455 GHz; frequency locking; frequency tuning bandwidth; magnetron output signal; noise reduction; oscillation frequency; self-injection-locked magnetron oscillator; Bandwidth; Electromagnetic heating; Feedback loop; Filters; Insertion loss; Magnetic resonance; Magnetic separation; Noise reduction; Oscillators; Resonant frequency; Frequency locking; self-injection-locked magnetron;
fLanguage
English
Journal_Title
Electron Devices, IEEE Transactions on
Publisher
ieee
ISSN
0018-9383
Type
jour
DOI
10.1109/TED.2007.908879
Filename
4383020
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