Randa, J.
and Terrell, L.
(1997),
Noise-Temperature Measurement System for the WR-28 Band, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=20255
(Accessed October 17, 2025)
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Noise-Temperature Measurement System for the WR-28 Band
Published
Author(s)
, L. A. Terrell
Abstract
The NIST Noise Project has constructed and tested a radiometer for the measurement of noise sources in the WR-28 waveguide band (26.5 GHz to 40 GHz). It is a total-power radiometer which incorporates a six-port reflectometer for the measurement of relevant reflection coefficients. The radiometer is similar in design to existing NIST systems covering the WR-62 (12.4 GHz to 18 GHz) and WR-42 (18 GHz to 26.5 GHz) bands. This paper reviews the theory and describes the design, testing, and operation of the system. Because of the similarities between the present system and the existing WR-62 and WR-42 systems, much of this document also applies to those systems.Citation
Technical Note (NIST TN) - 1395
Report Number
1395
Volume
1395
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
noise, noise measurement, noise temperature, radiometer, thermal noise
Citation
Issues
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Created July 31, 1997, Updated October 12, 2021