DocumentCode
916635
Title
Delay-stabilised variable oscillator
Author
Underhill, Michael J.
Author_Institution
Mullard Research Laboratories, Redhill, UK
Volume
8
Issue
5
fYear
1972
Firstpage
115
Lastpage
117
Abstract
An oscillator has been devised which can be continuously tuned over a 2 : 1 frequency range, and which has a stability and spectral purity approaching that of a quartz-crystal oscillator. A Pal glass delay line is used, with a phase detector in a feedback arrangement, to phase-lock a voltage-controlled oscillator between 3 and 6 MHz. The frequency stability is, in the limit, determined only by the phase stability of the delay.
Keywords
frequency stability; oscillators; phase-locked loops; ultrasonic delay lines; glass delay line; phase detector; phase stability; spectral purity; voltage controlled oscillator;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19720083
Filename
4235530
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