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Design and Testing of NFRad - A New Noise Measurement System

Published

Author(s)

Chriss A. Grosvenor, James P. Randa, Robert L. Billinger

Abstract

The NIST Noise project has constructed and tested a new, automated, coaxial (GPC-7) radiometer for the measurement of noise sources in the 8-12 GHz frequency band. It is an isolated, total-power radiometer that relies on lookup tables for relevant reflection coefficients and path asymmetry. This permits measurements at multiple frequencies much more quickly than on previous NIST systems. This paper reviews the theory, describes the design of the system and its components, and details the testing procedures and the operation of the system.
Citation
Technical Note (NIST TN) - 1518
Report Number
1518
Volume
1518

Keywords

noise, noise figure, noise measurement, noise temperature, radiometer, thermal noise

Citation

Grosvenor, C. , Randa, J. and Billinger, R. (2000), Design and Testing of NFRad - A New Noise Measurement System, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=6264 (Accessed April 22, 2024)
Created March 1, 2000, Updated February 19, 2017