Injection-Locked Magnetron Using a Cross-Domain Analyzer

An injection-locked magnetron with an external oscillator was investigated to obtain the parameters of the equivalent circuit model. The magnetron was locked over the ratio of the input power to output power of -26 dB and had the resonance characteristics of a parallel LCR circuit model. Increasing...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 26; no. 11; pp. 966 - 968
Main Authors Fujii, Satoshi, Maitani, Masato M., Suzuki, Eichi, Chonan, Satoshi, Fukui, Miho, Wada, Yuji
Format Journal Article
LanguageEnglish
Published IEEE 01.11.2016
Subjects
Equivalent circuit model of magnetron
Equivalent circuits
frequency locking
injection-locked magnetron
Integrated circuit modeling
Magnetic resonance
Magnetrons
Microwave circuits
Oscillators
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ISSN1531-1309
1558-1764
DOI10.1109/LMWC.2016.2615030

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Summary:An injection-locked magnetron with an external oscillator was investigated to obtain the parameters of the equivalent circuit model. The magnetron was locked over the ratio of the input power to output power of -26 dB and had the resonance characteristics of a parallel LCR circuit model. Increasing the input power caused the anti-resonance frequency to become the original frequency of the magnetron; the range of the locking frequency was wider because of the lower Q value. The phase noise of the locked magnetron of -70 dBc at a 40-kHz offset was improved in comparison with an unlocked magnetron. The results show that an injection-locked magnetron with an external oscillator has great potential for obtaining a high power output.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2016.2615030