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OSCILLATOR NOISE REDUCTION THROUGH THE USE OF NEGATIVE FEEDBACK

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Date Issued:
1985
Summary:
It has been conjectured that the addition of negative feedback in an oscillator can reduce the noise generated at frequencies close to the oscillation frequency f0. In this thesis the noise of a bipolar transistor used in a Hartley oscillator configuration is measured for different values of unbypassed emitter resistance. It is found that the noise is substantially reduced as the negative feedback introduced by the emitter resistance is increased. A detailed noise analysis is included, the results of which predict t he observed reduction in the oscillator noise. The oscillation frequency of the test oscillator is approximately 50 Mhz, but the results are general and can be applied at any frequency. Included are two listings of computer programs that were u sed to perform the noise analysis.
Title: OSCILLATOR NOISE REDUCTION THROUGH THE USE OF NEGATIVE FEEDBACK.
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Name(s): KALTENECKER, ROBERT S.
Florida Atlantic University, Degree grantor
Graham, Peter, Thesis advisor
College of Engineering and Computer Science
Department of Computer and Electrical Engineering and Computer Science
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1985
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 108 p.
Language(s): English
Summary: It has been conjectured that the addition of negative feedback in an oscillator can reduce the noise generated at frequencies close to the oscillation frequency f0. In this thesis the noise of a bipolar transistor used in a Hartley oscillator configuration is measured for different values of unbypassed emitter resistance. It is found that the noise is substantially reduced as the negative feedback introduced by the emitter resistance is increased. A detailed noise analysis is included, the results of which predict t he observed reduction in the oscillator noise. The oscillation frequency of the test oscillator is approximately 50 Mhz, but the results are general and can be applied at any frequency. Included are two listings of computer programs that were u sed to perform the noise analysis.
Identifier: 14278 (digitool), FADT14278 (IID), fau:11086 (fedora)
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): College of Engineering and Computer Science
Thesis (M.S.E.)--Florida Atlantic University, 1985.
Subject(s): Feedback (Electronics)
Noise--Measurement
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/14278
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.