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A broadband attenuation standard

Joo-Gwang Lee1, Jeong-Hwan Kim, Jeong-Il Park and Ung-Taeg Kang

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A standard step attenuator, composed of ten steps of a build-up chain of power measurement and operating from 10 MHz to 18 GHz, has been developed. Each step shows a nominal attenuation of about 9 dB and an expanded uncertainty of 0.0018 dB at 30 MHz. The overall system has a dynamic range over 90 dB.


PACS

07.57.-c Infrared, submillimeter wave, microwave and radiowave instruments and equipment

84.30.-r Electronic circuits

84.37.+q Electric variable measurements (including voltage, current, resistance, capacitance, inductance, impedance, and admittance, etc.)

06.20.F- Units and standards

84.40.-x Radiowave and microwave (including millimeter wave) technology

Subjects

Electronics and devices

Instrumentation and measurement

Dates

Issue 1 (January 2004)

Received 17 August 2003, accepted for publication 26 September 2003, in final form 22 September 2003

Published 14 October 2003



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