Analysis of the input noise contribution in the noise temperature measurements
| dc.citation.epage | 143 | en_US |
| dc.citation.issue | 3 | en_US |
| dc.citation.spage | 141 | en_US |
| dc.citation.volume | 15 | en_US |
| dc.citation.woscount | 1 | |
| dc.contributor.author | Hu, R | 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.date.accessioned | 2014-12-08T15:19:39Z | |
| dc.date.available | 2014-12-08T15:19:39Z | |
| dc.date.issued | 2005-03-01 | en_US |
| 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.identifier.doi | 10.1109/LMWC.2004.842832 | en_US |
| dc.identifier.issn | 1531-1309 | en_US |
| dc.identifier.journal | IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1109/LMWC.2004.842832 | en_US |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/13971 | |
| dc.identifier.wosnumber | WOS:000227536900001 | |
| 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 |