Design and analysis of 230 GHz all-NbN superconductor-insulator-superconductor mixer

Minran Chen; Chen Peng; Linjie Zhang; Lingchen Zuo; Yi Zhang; Xiaoyong He; Fangting Lin; Wangzhou Shi; Duo Cao; Feng Liu

doi:10.1117/12.3035989

8 November 2024 Design and analysis of 230 GHz all-NbN superconductor-insulator-superconductor mixer

Minran Chen, Chen Peng, Linjie Zhang, Lingchen Zuo, Yi Zhang, Xiaoyong He, Fangting Lin, Wangzhou Shi, Duo Cao, Feng Liu

Author Affiliations +

Proceedings Volume 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI; 132470G (2024) https://doi.org/10.1117/12.3035989
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

In this work, a 230 GHz all-NbN superconductor-insulator-superconductor (SIS) mixer was designed and analyzed. The NbN/AlN/NbN tunnel junctions (with an energy gap of 5.7 meV) and NbN/MgO/NbN tuning circuits were utilized. Full-height waveguides and bow-tie waveguide probes were adopted. The signal coupling circuit was designed and optimized to be transmissible to the given band. The quantum mixing characteristics of the all-NbN mixers were optimized with different-size SIS junctions. The mixer with a junction diameter of 1 μm achieves a conversion gain close to 0 dB and a noise temperature close to 40 K. The proposed design and analysis will provide technical support for the recovery and upgrade of the heterodyne receiver for the Leighton Chajnantor Telescope (LCT).

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Minran Chen, Chen Peng, Linjie Zhang, Lingchen Zuo, Yi Zhang, Xiaoyong He, Fangting Lin, Wangzhou Shi, Duo Cao, and Feng Liu "Design and analysis of 230 GHz all-NbN superconductor-insulator-superconductor mixer", Proc. SPIE 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI, 132470G (8 November 2024); https://doi.org/10.1117/12.3035989

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE