The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 29, 2022

Filed:

Jan. 08, 2020
Applicant:

Teknologian Tutkimuskeskus Vtt Oy, Espoo, FI;

Inventors:

Visa Vesterinen, Espoo, FI;

Juha Hassel, Espoo, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 19/00 (2006.01); H01L 39/22 (2006.01); H01L 39/24 (2006.01); H01P 3/00 (2006.01); H03F 7/00 (2006.01); H03F 7/04 (2006.01); H03G 3/00 (2006.01);
U.S. Cl.
CPC ...
H03F 19/00 (2013.01); H01L 39/223 (2013.01); H01L 39/2493 (2013.01); H01P 3/003 (2013.01); H03F 7/00 (2013.01); H03F 7/04 (2013.01); H03G 3/00 (2013.01);
Abstract

According to an example aspect of the present invention, there is provided a travelling wave parametric amplifier comprising a waveguide transmission line comprising therein at least ten Josephson elements, wherein each of the at least ten Josephson element comprises a loop, with exactly one Josephson junction of first size on one half of the loop and at least two Josephson junctions of a second size on a second half of the loop, the second size being larger than the first size, a flux bias line configured to generate a magnetic flux threading each of the at least one loop, and a set of resistors coupled with the flux bias line.


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