DocumentCode
845828
Title
30-MHz attenuation standard using binary phase modulation method
Author
Kawakami, Tomoteru ; Nagatuka, Akio ; Yokoshima, Ichiro
Author_Institution
Electrotech. Lab., Ibaraki, Japan
Volume
38
Issue
2
fYear
1989
fDate
4/1/1989 12:00:00 AM
Firstpage
448
Lastpage
450
Abstract
A 30-MHz attenuation measurement system which uses a ratio transformer as the standard attenuator is constructed and examined. The binary phase modulation method is used. Higher accuracy at low attenuations and easier maintenance are expected in the system than in the conventional system using the piston attenuator. The estimated uncertainty of the system is 0.0015 dB for 0-20 dB. The attenuation measurements made by the system and the conventional system agree within the estimated uncertainties
Keywords
attenuation measurement; measurement standards; phase modulation; 30 MHz; binary phase modulation; ratio transformer; standard attenuator; Attenuation measurement; Attenuators; Circuits; Frequency; Laboratories; Measurement standards; Phase modulation; Phase shifters; Pistons; Pulse amplifiers;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/19.192324
Filename
192324
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