A K-Band Ruby Maser with 500-MHz Bandwidth (Short Papers)

Engineering improvements to a previously described reflected- wave maser design have resulted in an instantaneous 3-dB band-width of 400 MHz at 19.5 GHz, increasing to 560 MHz at 24 GHz. Nominal gain is 27 to 31dB and gain flatness is /spl plusmn/2.5 dB over this tuning range. Noise temperature vari...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 28; no. 2; pp. 149 - 151
Main Author Moore, C.R.
Format Journal Article
LanguageEnglish
Published IEEE 01.02.1980
Subjects
Bandwidth
Coaxial components
Ferrites
Impedance
K-band
Magnetic separation
Masers
Superconducting device noise
Superconducting magnets
Temperature
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Summary:Engineering improvements to a previously described reflected- wave maser design have resulted in an instantaneous 3-dB band-width of 400 MHz at 19.5 GHz, increasing to 560 MHz at 24 GHz. Nominal gain is 27 to 31dB and gain flatness is /spl plusmn/2.5 dB over this tuning range. Noise temperature variation across the passband is less than /spl plusmn/1.5 K and the effective noise temperature referred to the room temperature input flange ranges from 9.5/spl plusmn/4 K to 13.5/spl plusmn/4 K over the 18.5- to 25-GHz tuning range.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.1980.1130026