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arXiv · 2112.05366

A multi-chroic kinetic inductance detectors array using hierarchical phased array antenna

Shibo Shu·Andrew Beyer·Peter K. Day·Fabien Defrance·Jack Sayers·Sunil Golwala
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Abstract

We present a multi-chroic kinetic inductance detector (KID) pixel design integrated with a broadband hierarchical phased-array antenna. Each low-frequency pixel consists of four high-frequency pixels. Four passbands are designed from 125 to 365 GHz according to the atmospheric windows. The lumped element KIDs consist of 100-nm thick AlMn inductors and Nb parallel plate capacitors with hydrogenated amorphous Si dielectric. Two different coupling structures are designed to couple millimeter-wave from microstrip lines to KIDs. The KID designs are optimized for a 10-m-class telescope at a high, dry site, for example, the Leighton Chajnantor Telescope. Preliminary measurement results using Al KIDs are discussed.

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Shibo Shu, Andrew Beyer, Peter K. Day, Fabien Defrance, Jack Sayers, Sunil Golwala. 2021-12-10. A multi-chroic kinetic inductance detectors array using hierarchical phased array antenna. https://doi.org/10.1007/s10909-022-02890-x

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