Allen, J.
(2000),
Switched-Coupler Measurements for High Power FR Calibrations, Microwave Journal
(Accessed October 11, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Switched-Coupler Measurements for High Power FR Calibrations
Published
Author(s)
J. W. Allen
Abstract
Calibration of RF power sensors at levels greater than 10 mW and uncertainties on the order of 2 % need not require complex calorimetric methods. Using a series of cascaded directional couplers makes it possible to compare a high-power RF sensor against a calibrated, low-power, bolometer mount. For power levels up to 1 kW, typical uncertainties are on the order of 2 % or better. This paper describes the design and operational theory behind the new high-power measurement system recently developed at the National Institute of Standards and Technology (NIST). This new system makes use of the established low-power bolometer calibration service, and extends our measurement capability up to 1 kW in the 2 MHz to 1000 GHz frequency range.Citation
Microwave Journal
Pub Type
Journals
Keywords
microcalorimeter, microwave calorimeter, microwave power measurement, microwave power standard waveguide, microwave power standard
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created February 29, 2000, Updated October 12, 2021