Technical noise in K‐band low‐noise cryogenic amplifier
نویسندگان
چکیده
منابع مشابه
CRYOGENIC 1.5-4.5 GHz ULTRA LOW NOISE AMPLIFIER
This paper describes cryogenic broadband amplifier with very low noise for the frequency band 1.5-4.5 GHz. At 15 K the twostage InP-based amplifier has a gain of 28+/-2 dB dB and a noise temperature below 5 K. For a narrower band of 2-4 GHz at 15 K the measured gain is 30.0+/-0.8 dB and noise temperature is 1.5 K. The total DC power consumption of the amplifier is 6.8 mW. A lattice matched stru...
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Article history: Received 18 February 2009 Accepted 16 July 2009
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We have constructed a dc-coupled differential amplifier capable of operating in the 4.2 K – 300 K temperature range. The amplifier can be operated at high-bias setting, where it dissipates 5 mW, has noise temperature TN < 0.8 K at 4 k source resistance and >40 MHz bandwidth at 4.2 K bath temperature. The bias setting can be adjusted: at our lowest tested setting the amplifier dissipates <100 W,...
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ژورنال
عنوان ژورنال: Electronics Letters
سال: 2016
ISSN: 0013-5194,1350-911X
DOI: 10.1049/el.2015.4024