By Topic

Phase-noise and amplitude-noise measurement of low-power signals

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Rubiola, E. ; ESSTIN & LPMIA, Univ. Henri Poincare, Nancy, France ; Salik, E. ; Yu, N. ; Maleki, L.

When measuring the phase fluctuation between a pair of low-power microwave signals, the signals must be amplified before detection. In such cases, the phase noise of the amplifier pair is the main cause of 1/f background noise of the instrument. This article proposes a scheme that makes amplification possible while rejecting the close-in 1/f (flicker) noise of the two amplifiers. The noise rejection, which relies upon an understanding of the amplifier noise mechanism, does not require averaging. Therefore, our scheme can also be the detector of a closed-loop noise reduction system. The first prototype, compared to a traditional saturated mixer system under the same conditions, shows a 24 dB noise reduction in the 1/f region.

Published in:

Frequency Control Symposium and Exposition, 2004. Proceedings of the 2004 IEEE International

Date of Conference:

23-27 Aug. 2004