DocumentCode :
3486079
Title :
Absolute measurement of microwave power based on the atomic rabi frequency
Author :
Kinoshita, M. ; Shimaoka, K. ; Komiyama, K.
Author_Institution :
Nat. Metrol. Inst. of Japan (NMIJ), Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba, Japan
fYear :
2010
fDate :
13-18 June 2010
Firstpage :
734
Lastpage :
735
Abstract :
The purpose of this study is to develop a new microwave power standard. In this study we demonstrate the measurement of the absolute power of a microwave at a frequency of approximately 9.2 GHz using the Rabi frequency of cesium atoms in a glass cell inserted into a WR90 waveguide. The Rabi frequency was converted into the microwave field strength. Then the absolute power was estimated by analyzing the distribution of the microwave field and the impedance mismatch in the waveguide containing the glass cell. The relative measurement uncertainty was typically less than 5%.
Keywords :
microwave measurement; power measurement; atomic Rabi frequency; measurement uncertainly; microwave absolute power measurement; microwave field distribution; microwave field strength; Atomic beams; Atomic measurements; Frequency measurement; Glass; Impedance; Magnetic field measurement; Masers; Microwave measurements; Phase modulation; Power measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
Type :
conf
DOI :
10.1109/CPEM.2010.5544777
Filename :
5544777
Link To Document :
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