DocumentCode
1493925
Title
Microwave attenuation standard
Author
Grantham, R. E. ; Freeman, J. J.
Author_Institution
Central radio and propagation laboratory of the National Bureau of Standards, Washington, D. C.
Volume
67
Issue
6
fYear
1948
fDate
6/1/1948 12:00:00 AM
Firstpage
535
Lastpage
537
Abstract
A standard of attenuation for microwave measurements has been established using the heterodyne or intermediate-frequency substitution method of calibrating microwave attenuators. A preliminary model of the waveguide-below-cutoff standard attenuator has been built, tested, and improved until its accuracy is within 0.01 decibel per 20 decibels. Accuracy of the entire unit is within 0.02 decibel in the 0–10-decibel range and within 0.2 per cent of the measured attenuation in decibels in the 10–50-decibel range.
Keywords
Attenuation; Attenuation measurement; Attenuators; Calibration; Coils; Crystals; Standards;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1948.6444149
Filename
6444149
Link To Document