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Drain temperature dependence on ambient temperature for a cryogenic low noise C-band amplifier

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Muñoz San Martín, Sagrario and Sebastián Franco, José Luis and Miranda Pantoja, José Miguel (1997) Drain temperature dependence on ambient temperature for a cryogenic low noise C-band amplifier. In EUROPEAN MICROWAVE 97, CONFERENCE + EXHIBITION. BRIDGING THE GAP BETWEEN INDUSTRY AND ACADEMIA, I, II . IEEE, Jerusalén, Israel, pp. 114-118.

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Official URL: http://dx.doi.org/10.1109/EUMA.1997.337780




Abstract

A comparison between predicted and measured noise temperatures for cryogenic HEMT amplifiers is presented by using the Pospieszalski's noise model. A good agreement between predicted and measured amplifier's noise performance is obtained both at room and cryogenic temperatures. However, the predicted values overestimate noise temperature in the center part of the measured temperature range (50K - 230K). A parabolic dependence for the drain temperature with ambient temperature is proposed to obtain a better fitting to the experimental results.


Item Type:Book Section
Additional Information:

European Microwave Conference and Exhibition- Bridging the Gap Between Industry and Academia (EuMC 97)(27.1997, Jerusalén, Israel).

Uncontrolled Keywords:Engineering, Electrical & Electronic.
Subjects:Sciences > Physics > Electricity
Sciences > Physics > Electronics
ID Code:24770
Deposited On:20 Mar 2014 10:14
Last Modified:10 Dec 2018 14:58

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