Title:
PARAMETRIC AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2020/246112
Kind Code:
A1
Abstract:
The present invention provides a parametric amplifier that does not require use of a Josephson superconductivity junction, the parametric amplifier being such that manufacturing thereof is relatively simple, and being usable as-is even in a magnetic field. The parametric amplifier comprises a coplanar-line superconductive resonator that includes: an oxide layer on a substrate; two ground lines formed from a superconductor layer, the ground lines extending in parallel on the oxide layer; and a signal line formed from a superconductor layer, the signal line extending between and parallel to the two ground lines with a prescribed gap from each of the ground lines, and parts via which signals are inputted and outputted being set apart from a body part and being capacitive-coupled. At a cooling temperature obtained with liquid helium, a microwave signal and a pump signal having a different frequency from the microwave signal are inputted to the input part of the signal line, whereby a high-frequency-amplified microwave signal is outputted from the output part.
Inventors:
NAKAMURA SHUJI (JP)
KANEKO NOBUHISA (JP)
OKAZAKI YUMA (JP)
TAKADA SHINTARO (JP)
KANEKO NOBUHISA (JP)
OKAZAKI YUMA (JP)
TAKADA SHINTARO (JP)
Application Number:
PCT/JP2020/012166
Publication Date:
December 10, 2020
Filing Date:
March 19, 2020
Export Citation:
Assignee:
AIST (JP)
International Classes:
H03F7/00; H01L39/22; H01P7/08
Foreign References:
JPH05160616A | 1993-06-25 | |||
JPH1041763A | 1998-02-13 | |||
JP2002290117A | 2002-10-04 | |||
JP2003283211A | 2003-10-03 | |||
US20180247974A1 | 2018-08-30 | |||
US20180045795A1 | 2018-02-15 |
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