Broadband microwave attenuation measurement standard in the frequency range from 10 MHz to 26.5 GHz

Author

Wu, T.Y. ; Chua, S.W.

Author_Institution

Nat. Metrol. Centre, A*STAR, Singapore, Singapore

fYear

2009

fDate

5-7 May 2009

Firstpage

1620

Lastpage

1624

Abstract

A broadband microwave attenuation measurement standard using audio frequency substitution method is described in this paper. The broadband standard includes a single channel and a dual channel system. The single channel system is used to perform accurate attenuation measurement from 10 MHz to 2 GHz. From 2 GHz to 26.5 GHz, the dual channel system is used to reduce the receiver noise and improve the measurement accuracy. Attenuation up to 110 dB can be measured by this standard. The measurement uncertainty of the standard is also analyzed. The expanded measurement uncertainties of a 0.01 dB ~ 110 dB variable attenuator are estimated to be 0.0028 dB ~ 0.028 dB from 10 MHz to 26.5 GHz.

Keywords

attenuation measurement; measurement standards; measurement uncertainty; microwave measurement; audio frequency substitution method; broadband microwave attenuation measurement standard; dual channel system; frequency 10 MHz to 26.5 GHz; measurement uncertainty; receiver noise reduction; single channel system; Amplifiers; Attenuation measurement; Attenuators; Isolators; Measurement standards; Measurement uncertainty; Microwave theory and techniques; Noise reduction; Radio frequency; Voltage; Attenuation measurement; lock-in amplifier; measurement uncertainty; microwave measurement; receiver sensitivity; standard;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE

Conference_Location

Singapore

ISSN

1091-5281

Print_ISBN

978-1-4244-3352-0

Type

conf

DOI

10.1109/IMTC.2009.5168714

Filename

5168714