Analysis of the input noise contribution in the noise temperature measurements

doi:10.1109/LMWC.2004.842832

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DC 欄位	值	語言
dc.contributor.author	Hu, R	en_US
dc.date.accessioned	2014-12-08T15:19:39Z	-
dc.date.available	2014-12-08T15:19:39Z	-
dc.date.issued	2005-03-01	en_US
dc.identifier.issn	1531-1309	en_US
dc.identifier.uri	http://dx.doi.org/10.1109/LMWC.2004.842832	en_US
dc.identifier.uri	http://hdl.handle.net/11536/13971	-
dc.description.abstract	In measuring the noise temperature of a cryogenic microwave low-noise amplifier (LNA), the noise from the input thermal buffer, i.e., the coaxial cable that connects the noise source to the amplifier, needs to be correctly accounted for. With the amplifier's noise temperature approaching just a few Kelvins, the postulate used in calculating the cable's noise temperature, that the cable is homogeneous and has a linear temperature profile, commands a further inspection. This letter analyzes these assumptions and clarifies the situations in which they hold. To substantiate this Kelvin-level discretion, a LNA is designed and measured.	en_US
dc.language.iso	en_US	en_US
dc.subject	noise temperature measurement	en_US
dc.title	Analysis of the input noise contribution in the noise temperature measurements	en_US
dc.type	Article	en_US
dc.identifier.doi	10.1109/LMWC.2004.842832	en_US
dc.identifier.journal	IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS	en_US
dc.citation.volume	15	en_US
dc.citation.issue	3	en_US
dc.citation.spage	141	en_US
dc.citation.epage	143	en_US
dc.contributor.department	電子工程學系及電子研究所	zh_TW
dc.contributor.department	Department of Electronics Engineering and Institute of Electronics	en_US
dc.identifier.wosnumber	WOS:000227536900001	-
dc.citation.woscount	1	-
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