Design of microstrip-line coupled kinetic inductance detectors for near infrared astronomy

Shiling Yu; Shibo Shu; Ran Duan; Lihui Yang; Di Li

doi:10.1117/12.2629154

31 August 2022 Design of microstrip-line coupled kinetic inductance detectors for near infrared astronomy

Shiling Yu, Shibo Shu, Ran Duan, Lihui Yang, Di Li

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 1219019 (2022) https://doi.org/10.1117/12.2629154
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

Kinetic inductance detectors (KID) have great potential in astronomical observation, such as searching for exoplanets, because of their low noise, fast response and photon counting characteristics. In this paper, we present the design process and simulation results of a microstrip line coupled KIDs array for near-infrared astronomical observation. Compared with coplanar waveguide (CPW) feedlines, microstrip feedlines do not require air bridges, which simplify fabrication process. In the design part, we mainly focus on the impedance transforming networks, the KID structure, and the frequency crosstalk simulations. The test array has a total of 104 resonators with 8 rows and 13 columns, which ranges from 4.899 GHz to 6.194 GHz. The pitch size is about 200 µm and the frequency crosstalk is less than 50 kHz in simulation.

Citation Download Citation

Shiling Yu, Shibo Shu, Ran Duan, Lihui Yang, and Di Li "Design of microstrip-line coupled kinetic inductance detectors for near infrared astronomy", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 1219019 (31 August 2022); https://doi.org/10.1117/12.2629154

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