Title :
PTB-NIST bilateral comparison of microwave noise power in coaxial transmission line
Author :
Wait, D.F. ; Counas, G.J. ; Kessel, W. ; Buchholz, F.-I.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
The Physikalisch-Technische Bundesanstalt and the National Institute of Standards and Technology have compared microwave noise power in coaxial transmission lines. Each laboratory measured two solid-state noise sources at 2.0 GHz, 4.0 GHz, and 8.0 GHz relative to their primary thermal noise standards. The agreement between laboratories is better than 0.07 dB, which is within the stated uncertainties of the two services, namely +or-0.06 dB for NIST, and +or-0.04 dB for PTB (confidence level: 0.95).<>
Keywords :
coaxial cables; electric noise measurement; measurement standards; microwave measurement; thermal noise; 2.0 GHz; 4.0 GHz; 8.0 GHz; National Institute of Standards and Technology; PTB-NIST bilateral comparison; Physikalisch-Technische Bundesanstalt; coaxial transmission line; microwave noise power; primary thermal noise standards; Coaxial components; Connectors; Laboratories; Microwave radiometry; NIST; Noise measurement; Ovens; Power transmission lines; Solid state circuits; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.109911
