Electronic cooling of a passive resistor by a microwave transistor amplifier

Authors
Venguer, AP Medina, JL Chavez, RA
Citation
Ap. Venguer et al., Electronic cooling of a passive resistor by a microwave transistor amplifier, MICROW OPT, 30(6), 2001, pp. 423-427
Citations number
10
Categorie Soggetti
Optics & Acoustics
Journal title
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
ISSN journal
08952477 → ACNP
Volume
30
Issue
6
Year of publication
2001
Pages
423 - 427
Database
ISI
SICI code
0895-2477(20010920)30:6<423:ECOAPR>2.0.ZU;2-3
Abstract
Experimental research on the influence of a transistor amplifier on the noi se power value of a passive resistor was performed. An expression for the n oise temperature cooling using an attenuator-amplifier circuit is proposed. avoiding physical cooling. A significant deviation of the electromagnetic radiation value from the linear characteristics of a passive resistor is ob tained into a given operation bandwidth of the amplifier for relatively sma ll attenuation values and as a function of the input return losses. (C) 200 1 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 423-427, 2001.