Kavli Affiliate: Sunil Golwala
| First 5 Authors: Shibo Shu, Andrew Beyer, Peter K. Day, Fabien Defrance, Jack Sayers
| Summary:
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 are designed with 100 nm Al as the inductor and with Nb parallel
plate capacitors using hydrogenated amorphous Si as the dielectric. Due to the
broadband coverage, two different types of structures are needed to couple
light from microstrip lines to the KIDs. The KIDs designs are optimized for a
10-m-class telescope at a high, dry site.
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