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HTS dc SQUID based rf amplifier: development concept

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Volume
368
Identifiers
DOI: 10.1016/s0921-4534(01)01157-1
Keywords
  • Hts Josephson Junction
  • Dc Squid
  • Rf Amplifier
Disciplines
  • Communication

Abstract

Abstract We present a concept of a rf amplifier based on a directly coupled dc SQUID with bicrystal junctions, which have high saturation power and can be used with SIS mixers or possibly for satellite and cellular phone communications. A novel input resonant circuit is proposed using single layer of HTS. Estimated parameters are (per stage): central frequency≈11 GHz, bandwidth≈400 MHz, noise temperature≈10 K, gain≈10 dB and input saturation≈1000 K GHz.

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