Performance Advantages and Design Issues of SQIFs for Microwave Applications

We consider applications of SQIFs as amplifiers for gigahertz frequency range. SQIF-like structures are able to provide much higher dynamic range and linearity than a dc SQUID. We also analyse design limitations imposed by finite coupling inductances and stray capacitances. Possible ways of resolvin...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.916-919
Main Authors: Kornev, V.K., Soloviev, I.I., Klenov, N.V., Filippov, T.V., Engseth, H., Mukhanov, O.A.
Format: Article
Language:English
Subjects:
Amplifiers
Direct current
Dynamic range
Frequency ranges
high linearity
Joining
Josephson junctions
Linearity
Low-noise amplifiers
Mathematical analysis
Microwaves
Optical amplifiers
Radio frequency
Radiofrequency amplifiers
SQIF
SQUID
SQUIDs
Superconducting device noise
Superconducting microwave devices
Superconductivity
Voltage
voltage response
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Summary:We consider applications of SQIFs as amplifiers for gigahertz frequency range. SQIF-like structures are able to provide much higher dynamic range and linearity than a dc SQUID. We also analyse design limitations imposed by finite coupling inductances and stray capacitances. Possible ways of resolving design issues are discussed.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2019589