DocumentCode
2624847
Title
Practical Application of a Positive Resistance Up-Converter for Ultra-Low-Noise Amplification
Author
Sard, E. ; Peyton, B. ; Okwit, S.
Volume
66
Issue
1
fYear
1966
fDate
16-19 May 1966
Firstpage
41
Lastpage
45
Abstract
An ultra-low-noise, tunable s-band amplifier which uses a travelling-wave maser (TWM) as the second stage has been developed. The amplifier is made up of a cooled, tunable low-noise s-band varactor up-converter, a fixed-tuned, high-gain, C-band TWM, and an uncooled, tunable varactor down-converter connected in cascade. This receiver configuration has the advantage of combining the large tuning range capability of a parametric up-converter with the ultra-low noise temperature and unconditional stability of a maser.
Keywords
Bandwidth; Equivalent circuits; Frequency conversion; Instruments; Low-noise amplifiers; Masers; Temperature distribution; Varactors;
fLanguage
English
Publisher
ieee
Conference_Titel
G-MTT International Symposium Digest, 1966
Conference_Location
Palo Alto, CA, USA
Type
conf
DOI
10.1109/GMTT.1966.1122524
Filename
1122524
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