DocumentCode :
3167484
Title :
The accurate measurement of microwave phase-shift using a dual-channel heterodyne system
Author :
Wu, Thomas Y. ; Chua, S.W. ; Lu, Y.L.
Author_Institution :
Nat. Metrol. Centre, A*STAR, Singapore, Singapore
fYear :
2009
fDate :
7-10 Dec. 2009
Firstpage :
1597
Lastpage :
1600
Abstract :
A dual-channel heterodyne microwave phase-shift measurement system has been developed. This system is used to provide accurate transmission phase measurement of various devices and phase-shift standards from 50 MHz to 2 GHz. The system design and measurement uncertainties analysis are given in this paper. A beadless coaxial air line has been used as a phase-shift standard to verify the system performance and its phase-shift is calculated with consideration of its insertion loss. The measured phase-shift value agrees with the calculated values within the measurement uncertainties. The estimated phase measurement uncertainty is 0.055 to 0.2 degrees for variable attenuators with attenuation up to 140 dB.
Keywords :
attenuators; microwave measurement; beadless coaxial air line; dual-channel heterodyne system; frequency 50 MHz to 2 GHz; measurement uncertainties analysis; microwave phase-shift measurement; transmission phase measurement; variable attenuators; Coaxial components; Insertion loss; Measurement standards; Measurement uncertainty; Microwave devices; Microwave measurements; Phase estimation; Phase measurement; System analysis and design; System performance; Microwave measurement; air line; attenuation measurement; phase-shift measurement; phase-shift standard;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
Type :
conf
DOI :
10.1109/APMC.2009.5384375
Filename :
5384375
Link To Document :
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