Millimeter wave power standards

Author

Akhiezer, A.N. ; Senko, A.P. ; Seredniy, V.P.

Author_Institution

State Sci. & Ind. Assoc. Metrology, Kharkov, Ukraine

Volume

46

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

495

Lastpage

498

Abstract

The millimeter wave power standards were developed at SSIA “Metrology” and entirely modernized, automated, and united as The Power Standard for the Frequency Range (37.5 to 178.6) GHz during 1992 to 1995. The uncertainty (99% confidence level) is 0.5% in the (37.5 to 78.3) GHz band and 1% in the (78.3 to 178.6) GHz band. The standard power meters are based on isothermal calorimeters. The unit of power transfer is effected by means of waveguide comparison assemblies and secondary power standards of the autocompensating type. The periodic comparisons of the standard power meters and of those with the power standard of the Russian Federation (2.59 to 37.5) GHz at the frequency 37.5 GHz show agreement and long-term stability of 0.3%. For an independent control in the short wave-length end of the range a special wide-band transducer is calibrated in a microcalorimeter by direct measurement of its thermal losses and compared afterwards with the power standard

Keywords

calorimeters; heat losses; measurement errors; measurement standards; millimetre wave measurement; power measurement; power meters; 37.5 to 178.6 GHz; SSIA; autocompensating type; isothermal calorimeters; millimeter wave power standards; power meters; power transfer; secondary power standards; thermal losses; uncertainty; waveguide comparison assemblies; wide-band transducer; Assembly; Frequency; Isothermal processes; Region 8; Stability; Standards development; Transducers; Uncertainty; Waveguide components; Wideband;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.571894

Filename

571894