DocumentCode
1203850
Title
The PTB R 100 Primary Thermal-Noise Standard
Author
Kessel, Wolfgang ; Buchholz, Friedrich-Immanuel
Volume
32
Issue
1
fYear
1983
fDate
3/1/1983 12:00:00 AM
Firstpage
286
Lastpage
288
Abstract
A primary thermal noise standard for the R 100 waveguide band (8.2 to 12.4 GHz), working at 653 K, has been established at PTB. It consists of three different parts: a high-temperature-resistive termination, a transition section, a water-cooled output part. The principles of design and construction technologies meet the standard´s requirements concerning the microwave transmission line properties and the stability and distribution of temperature. Taking advantage of the resonance properties of the different parts, the standard has been optimized at special calibration frequencies.
Keywords
Ceramics; Electromagnetic heating; Flanges; Frequency; Noise level; Power transmission lines; Temperature distribution; Temperature sensors; Thermal resistance; Waveguide components;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.1983.4315060
Filename
4315060
Link To Document