NDLI: A Miniature YIG Tuned Oscillator/Frequency Divider Achieves Octave Tuning Bandwidth with Ultra Low Phase Noise in S, C, X and Ku Bands

Content Provider	IEEE Xplore Digital Library
Author	Sweet, A.A. Parrott, R.
Copyright Year	2006
Description	Author affiliation: Vida Products Inc., Santa Rosa, CA (Sweet, A.A.; Parrott, R.)
Abstract	Traditional YIG tuned oscillators use negative resistance type circuits and large magnetic structure to produce excellent phase noise with octave plus tuning ranges, but at the expense of size and weight. This paper describes a revolutionary approach to YIG tuned oscillator design which makes use of a unique combination of a miniaturized magnetic structure, and a GaAs HBT ring oscillator circuit topology, working through a YIG tuned filter to produce octave tuning ranges in X and Ku bands with phase noise less than -125 dBC per Hz at 100 KHz. To cover S and C bands, a digital IC frequency divider is used to divide the output frequency by an integer N. Phase noise is shown to improve by a factor 20Log(N). For N=4, and F0=12 GHz, at an output frequency of 3 GHz, the measured phase noise is -137 dBC per Hz at 100 KHz
Starting Page	176
Ending Page	178
File Size	88818
Page Count	3
File Format	PDF
ISBN	2960055187
DOI	10.1109/EMICC.2006.282780
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-10
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	EUROPEAN MICROWAVE ASSOC
Subject Keyword	Phase noise Ring oscillators Circuit optimization Magnetic separation Tuned circuits Gallium arsenide Bandwidth Frequency conversion Tuning Magnetic circuits
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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