IEICE TRANSACTIONS on Electronics
Noise Temperature of Active Feedback Resonator (AFR)
Summary :
An active feedback resonator (AFR) is a kind of circuit which functions as a high unloaded Q resonator. The AFR employs an active feedback loop which compensates for the energy loss of a conventional microwave resonator. Owing to an active element in the AFR, thermal noise should be taken into account when designing the AFR. In order to simplify a circuit design using the AFR we introduced noise temperature (Tn) for the AFR. In addition, we describe the AFR design which gives minimum noise temperature. Finally, the noise temperature, measured in an AFR as a band elimination filter, is compared with the theoretical value to evaluate the AFR.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E76-C No.6 pp.925-931
- Publication Date
- 1993/06/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Microwave and Millimeter-Wave Technology for Advanced Functions and Size-Reductions)
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Youhei ISHIKAWA, Sadao YAMASHITA, Seiji HIDAKA, "Noise Temperature of Active Feedback Resonator (AFR)" in IEICE TRANSACTIONS on Electronics,
vol. E76-C, no. 6, pp. 925-931, June 1993, doi: .
Abstract: An active feedback resonator (AFR) is a kind of circuit which functions as a high unloaded Q resonator. The AFR employs an active feedback loop which compensates for the energy loss of a conventional microwave resonator. Owing to an active element in the AFR, thermal noise should be taken into account when designing the AFR. In order to simplify a circuit design using the AFR we introduced noise temperature (Tn) for the AFR. In addition, we describe the AFR design which gives minimum noise temperature. Finally, the noise temperature, measured in an AFR as a band elimination filter, is compared with the theoretical value to evaluate the AFR.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e76-c_6_925/_p
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@ARTICLE{e76-c_6_925,
author={Youhei ISHIKAWA, Sadao YAMASHITA, Seiji HIDAKA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Noise Temperature of Active Feedback Resonator (AFR)},
year={1993},
volume={E76-C},
number={6},
pages={925-931},
abstract={An active feedback resonator (AFR) is a kind of circuit which functions as a high unloaded Q resonator. The AFR employs an active feedback loop which compensates for the energy loss of a conventional microwave resonator. Owing to an active element in the AFR, thermal noise should be taken into account when designing the AFR. In order to simplify a circuit design using the AFR we introduced noise temperature (Tn) for the AFR. In addition, we describe the AFR design which gives minimum noise temperature. Finally, the noise temperature, measured in an AFR as a band elimination filter, is compared with the theoretical value to evaluate the AFR.},
keywords={},
doi={},
ISSN={},
month={June},}
Copy
TY - JOUR
TI - Noise Temperature of Active Feedback Resonator (AFR)
T2 - IEICE TRANSACTIONS on Electronics
SP - 925
EP - 931
AU - Youhei ISHIKAWA
AU - Sadao YAMASHITA
AU - Seiji HIDAKA
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E76-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 1993
AB - An active feedback resonator (AFR) is a kind of circuit which functions as a high unloaded Q resonator. The AFR employs an active feedback loop which compensates for the energy loss of a conventional microwave resonator. Owing to an active element in the AFR, thermal noise should be taken into account when designing the AFR. In order to simplify a circuit design using the AFR we introduced noise temperature (Tn) for the AFR. In addition, we describe the AFR design which gives minimum noise temperature. Finally, the noise temperature, measured in an AFR as a band elimination filter, is compared with the theoretical value to evaluate the AFR.
ER -
English
