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Design considerations for a W-band Josephson junction travelling wave parametric amplifier

Abstract:
Most Josephson junction Travelling Wave Parametric Amplifiers (JTWPAs) developed so far have been focused on operation below 20 GHz, primarily driven by the choice of the qubit resonance frequency used in quantum computation research. Consequently, there is a lack of effort to extend their operation to higher frequency ranges. However, millimetre (mm)- wave JTWPAs could offer potential significant advantages for astronomy, but their operation in this regime is largely unexplored. In this paper, we describe the design considerations for extending JTWPAs operation to the W-band range. We present two JTWPA designs, one with and one without phase matching elements, and we discuss the design methodology of both approaches, before showing their predicted performance respectively.
Publication status:
Published
Peer review status:
Peer reviewed

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Publication website:
https://www.nrao.edu/meetings/isstt/2024.shtml

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Oxford college:
Balliol College
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
ORCID:
0000-0002-6252-9351


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Funder identifier:
https://ror.org/0472cxd90
Grant:
803862
Programme:
SPA4AstroQIT
More from this funder
Funder identifier:
https://ror.org/057g20z61
Grant:
ST/Y004973/1


Publisher:
National Radio Astronomy Observatory
Host title:
ISSTT 2024 Proceedings
Series number:
NRAO ISSTT Proceedings
Publication date:
2025-05-16
Acceptance date:
2024-07-25
Event title:
33rd IEEE International Symposium on Space Terahertz Technology (ISSTT 2024)
Event location:
Charlottesville, Virginia, USA
Event website:
https://go.nrao.edu/ISSTT24
Event start date:
2024-04-07
Event end date:
2024-04-11


Language:
English
Keywords:
Pubs id:
2018267
Local pid:
pubs:2018267
Deposit date:
2024-07-25

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