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Superconducting tunable coupler

  • US 9,647,662 B1
  • Filed: 06/24/2016
  • Issued: 05/09/2017
  • Est. Priority Date: 06/24/2016
  • Status: Active Grant
First Claim
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1. A superconducting system comprising:

  • a coplanar superconducting circuit comprising;

    a first ground plane region;

    a second ground plane region electrically isolated from the first ground plane region by portions of the coplanar superconducting circuit; and

    a tunable coupler having a first port and a second port, the tunable coupler comprising;

    a variable inductance coupling element coupled between the first port and the second port;

    a first termination inductor having a first end coupled between a first end of the variable inductance element and a second end coupled to the first ground plane region; and

    a second termination inductor having a first end coupled between a second end of the variable inductance element and a second end coupled to the second ground plane region.

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