A broadband dc SQUID based rf amplifier: experimental basics and development concept

G.V. Prokopenko, S.V. Shitov, Jesper Mygind

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We present a concept of a broadband IF amplifier based on experimental results obtained with a dc SQUID rf amplifier (SQA). The frequency range is broadened by using several SQAs, each one tuned to its own central frequency at both input and output; the numerical simulations are presented. A possibility of fine adjustment of the input impedance is numerically demonstrated in the range of 1-1000 Omega. The following parameters are expected for a three-channel SQA: central frequency approximate to4 GHz, bandwidth 1 GHz, noise temperature approximate to2 K, input saturation approximate to300 K GHz.(C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
JournalPhysica C: Superconductivity and its Applications
Volume372
Pages (from-to)229-232
ISSN0921-4534
Publication statusPublished - 2002

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