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High‐frequency limitations of the double‐junction SQUID amplifier

 

作者: J. E. Zimmerman,   D. B. Sullivan,  

 

期刊: Applied Physics Letters  （AIP Available online 1977）
卷期: Volume 31, issue 5  

页码: 360-362

 

ISSN:0003-6951

 

年代: 1977

 

DOI:10.1063/1.89699

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The double‐junction SQUID is viewed as a parametric amplifier and mechanisms, which place an upper limit on the pump frequency (and thus gain), are investigated. Self‐induced steps in theI‐Vcharacteristics as well as damping of the Josephson oscillation are shown to be two limiting mechanisms.

 

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