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- W1991311928 abstract "We present the design and realization of 4 GHz cryogenic low noise amplifiers used as IF amplifiers in a radio-camera receiver (SISYFOS project) which is to be installed in the Onsala 20 m millimetre wave telescope. We show that a very simple and compact input design provides good matching over a broad bandwidth while ensuring the stability of the amplifier. The minimum noise temperature and the gain of the amplifier measured at cryogenic ambient temperature over the specified bandwidth are 7 K and 28 dB respectively. Nous présentons le développement d'amplificateurs faible bruit. Ces amplificateurs seront utilisés à la fréquence intermédiaire de 4 GHz dans le récepteur millimétrique du système d'imagerie de l'Observatoire spatial d'Onsala. Nous montrons qu'un circuit d'adaptation relativement simple et compact en entrée assure stabilité et adaptation sur un large intervalle de fréquences. La température équivalente de bruit minimale et le gain de l'amplificateur mesurés à température cryogénique sont respectivement de 7 K et 28 dB." @default.
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- W1991311928 date "1999-01-01" @default.
- W1991311928 modified "2023-10-14" @default.
- W1991311928 title "4 GHz cryogenic low noise IF amplifiers for OSO imaging receiver" @default.
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- W1991311928 doi "https://doi.org/10.1016/s1287-4620(99)80027-1" @default.
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