The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Um front-end de receptor criogênico experimental de banda de 2 GHz (CRFE) experimental de ultra baixo ruído e altamente seletivo foi desenvolvido recentemente para estações base celulares. Ele utiliza um filtro supercondutor de alto Q, um amplificador criogênico de baixíssimo ruído e um cooler altamente confiável e muito compacto. O design fundamental do CRFE é investigado. Primeiro, são discutidos a temperatura de ruído equivalente do CRFE e o efeito da melhoria da sensibilidade do CRFE na recepção da estação base. A seguir são descritas tecnologias essenciais e características fundamentais de cada componente. Finalmente, a influência do ruído da antena, como o ruído do solo e o ruído provocado pelo homem, é estimada através de testes de campo em áreas urbanas e suburbanas.
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Toshio NOJIMA, Shoichi NARAHASHI, Tetsuya MIMURA, Kei SATOH, Yasunori SUZUKI, "2-GHz Band Cryogenic Receiver Front End for Mobile Communication Base Station Systems" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 8, pp. 1834-1843, August 2000, doi: .
Abstract: An ultra low-noise and highly selective, experimental 2-GHz band cryogenic receiver front end (CRFE) has been newly developed for cellular base stations. It utilizes a high-Q superconducting filter, a very low noise cryogenic amplifier, and a highly reliable cooler that is very compact. Fundamental design of the CRFE is investigated. First, the equivalent noise temperature of the CRFE and the effect of improving CRFE sensitivity on base station reception are discussed. Next, essential technologies and fundamental characteristics of each component are described. Finally, influence of antenna noise, such as ground noise and man-made noise, is estimated through field tests both in urban and suburban areas.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_8_1834/_p
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@ARTICLE{e83-b_8_1834,
author={Toshio NOJIMA, Shoichi NARAHASHI, Tetsuya MIMURA, Kei SATOH, Yasunori SUZUKI, },
journal={IEICE TRANSACTIONS on Communications},
title={2-GHz Band Cryogenic Receiver Front End for Mobile Communication Base Station Systems},
year={2000},
volume={E83-B},
number={8},
pages={1834-1843},
abstract={An ultra low-noise and highly selective, experimental 2-GHz band cryogenic receiver front end (CRFE) has been newly developed for cellular base stations. It utilizes a high-Q superconducting filter, a very low noise cryogenic amplifier, and a highly reliable cooler that is very compact. Fundamental design of the CRFE is investigated. First, the equivalent noise temperature of the CRFE and the effect of improving CRFE sensitivity on base station reception are discussed. Next, essential technologies and fundamental characteristics of each component are described. Finally, influence of antenna noise, such as ground noise and man-made noise, is estimated through field tests both in urban and suburban areas.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - 2-GHz Band Cryogenic Receiver Front End for Mobile Communication Base Station Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1834
EP - 1843
AU - Toshio NOJIMA
AU - Shoichi NARAHASHI
AU - Tetsuya MIMURA
AU - Kei SATOH
AU - Yasunori SUZUKI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2000
AB - An ultra low-noise and highly selective, experimental 2-GHz band cryogenic receiver front end (CRFE) has been newly developed for cellular base stations. It utilizes a high-Q superconducting filter, a very low noise cryogenic amplifier, and a highly reliable cooler that is very compact. Fundamental design of the CRFE is investigated. First, the equivalent noise temperature of the CRFE and the effect of improving CRFE sensitivity on base station reception are discussed. Next, essential technologies and fundamental characteristics of each component are described. Finally, influence of antenna noise, such as ground noise and man-made noise, is estimated through field tests both in urban and suburban areas.
ER -