DocumentCode
977991
Title
Parametric properties of SQUID lattice arrays
Author
Silver, A.H. ; Pridmore-Brown, D.C. ; Sandell, R.D. ; Hurrell, J.P.
Author_Institution
The Aerospace Corporation, Los Angeles, CA
Volume
17
Issue
1
fYear
1981
fDate
1/1/1981 12:00:00 AM
Firstpage
412
Lastpage
415
Abstract
Josephson junctions incorporated into microcircuit SQUIDs have many uses including digital logic and memory, parametric amplification, signal generation, and analog to digital conversion. Combining SQUIDs into coherent arrays can preserve these functions and add great flexibility in selecting power and impedance. We have investigated such general properties of the SQUID lattice array as the mode structure, dispersion relations, and stability. In particular, one unique antisymmetric mode is shown to precisely reproduce the performance of a single rf SQUID, with increased power and impedance. The application of this mode to parametric amplification has been demonstrated analytically and numerically, projecting a useful low noise amplifier with a gain of 10dB at 16% bandwidth.
Keywords
Josephson device amplifiers; Parametric amplifiers; Analog-digital conversion; Dispersion; Impedance; Josephson junctions; Lattices; Low-noise amplifiers; Radiofrequency amplifiers; SQUIDs; Signal generators; Stability;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1981.1060904
Filename
1060904
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