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A kinetic inductance detectors array design for high background conditions at 150 GHz

Shu, Shibo and Sayers, Jack and Day, Peter (2022) A kinetic inductance detectors array design for high background conditions at 150 GHz. Journal of Low Temperature Physics . ISSN 0022-2291. doi:10.1007/s10909-022-02746-4. (In Press)

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We present a design for an array of kinetic inductance detectors (KIDs) integrated with phased array antennas for imaging at 150 GHz under high background conditions. The microstrip geometry KID detectors are projected to achieve photon noise limited sensitivity with larger than 100 pW absorbed optical power. Both the microstrip KIDs and the antenna feed network make use of a low-loss amorphous silicon dielectric. A new aspect of the antenna implementation is the use of a NbTiN microstrip feed network to facilitate impedance matching to the 50 Ohm antenna. The array has 256 pixels on a 6-inch wafer and each pixel has two polarizations with two Al KIDs. The KIDs are designed with a half wavelength microstrip transmission line with parallel plate capacitors at the two ends. The resonance frequency range is 400–800 MHz. The readout feedline is also implemented in microstrip and has an impedance transformer from 50 to 9 Ohm at its input and output.

Item Type:Article
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URLURL TypeDescription ReadCube access Paper
Shu, Shibo0000-0002-6370-2101
Sayers, Jack0000-0002-8213-3784
Additional Information:© 2022 Springer Nature. Received 31 October 2021. Accepted 04 May 2022. Published 25 May 2022. Data sharing not applicable to this article as no datasets were generated or analysed during the current study.
Non-Subject Keywords:kinetic inductance detector, photon noise limited, NbTiN
Record Number:CaltechAUTHORS:20220411-225153886
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Official Citation:Shu, S., Sayers, J. & Day, P. A Kinetic Inductance Detectors Array Design for High Background Conditions at 150 GHz. J Low Temp Phys (2022).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:114223
Deposited By: George Porter
Deposited On:12 Apr 2022 19:34
Last Modified:31 May 2022 20:49

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