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학술지 A microwave HEMT oscillator with a directly coupled port at 4.2 K
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저자
이문규
발행일
200111
출처
Microwave and Optical Technology Letters, v.31 no.3, pp.159-162
ISSN
0895-2477
출판사
Wiley
DOI
https://dx.doi.org/10.1002/mop.1386
협약과제
02MR2100, 통신방송위성 개발, 이성팔
초록
An X-band HEMT oscillator is designed and tested at the cryogenic temperature of liquid helium. The designed oscillator has a directly coupled port in addition to an output port to obtain circuit simplicity. For the novel oscillator configuration, an analytic design formula of the feedback network is derived. The measured data at cryogenic temperature show a significantly improved phase noise and output power compared to the performance of an oscillator operating at room temperature. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett.
키워드
Cryogenic oscillator, Microwave oscillator, Phase noise
KSP 제안 키워드
Analytic design, Cryogenic temperature, Design formula, Output power, Room-temperature, feedback network, liquid helium, measured data, microwave oscillator, phase noise, x-band