pith. sign in

arxiv: 1909.01305 · v2 · pith:WVGM6EA6new · submitted 2019-09-03 · 🌌 astro-ph.IM

Microwave multiplexing on the Keck Array

Ari Cukierman , Zeeshan Ahmed , Shawn Henderson , Edward Young , Cyndia Yu , Denis Barkats , David Brown , Saptarshi Chaudhuri
show 77 more authors
James Cornelison John M. D'Ewart Marion Dierickx Bradley J. Dober John Dusatko Sofia Fatigoni Jeff P. Filippini Josef C. Frisch Gunther Haller Mark Halpern Gene C. Hilton Johannes Hubmayr Kent D. Irwin Kirit S. Karkare Ethan Karpel Sarah A. Kernasovskiy John M. Kovac Attila Kovacs Stephen E. Kuenstner Chao-Lin Kuo Dale Li John A. B. Mates Stephen Smith Tyler St. Germaine Joel N. Ullom Leila R. Vale Daniel D. Van Winkle Jesus Vasquez Justin Willmert Lingzhen Zeng P. A. R. Ade M. Amiri R. Basu Thakur C. A. Bischoff J. J. Bock H. Boenish E. Bullock V. Buza J. Cheshire J. Connors M. Crumrine L. Duband G. Hall S. Harrison S. R. Hildebrandt H. Hui J. Kang S. Kefeli K. Lau K. G. Megerian L. Moncelsi T. Namikawa H. T. Nguyen R. O'Brient S. Palladino C. Pryke B. Racine C. D. Reintsema S. Richter A. Schillaci R. Schwarz C. D. Sheehy A. Soliman B. Steinbach R. V. Sudiwala K. L. Thompson C. Tucker A. D. Turner C. Umilta A. G. Vieregg A. Wandui A. C. Weber D. V. Wiebe W. L. K. Wu H. Yang K. W. Yoon C. Zhang
This is my paper
classification 🌌 astro-ph.IM
keywords systemcoupledmicrowavereadoutarraykeckmicrowave-multiplexingmultiplexing
0
0 comments X
read the original abstract

We describe an on-sky demonstration of a microwave-multiplexing readout system in one of the receivers of the Keck Array, a polarimetry experiment observing the cosmic microwave background at the South Pole. During the austral summer of 2018-2019, we replaced the time-division multiplexing readout system with microwave-multiplexing components including superconducting microwave resonators coupled to radio-frequency superconducting quantum interference devices at the sub-Kelvin focal plane, coaxial-cable plumbing and amplification between room temperature and the cold stages, and a SLAC Microresonator Radio Frequency system for the warm electronics. In the range 5-6 GHz, a single coaxial cable reads out 528 channels. The readout system is coupled to transition-edge sensors, which are in turn coupled to 150-GHz slot-dipole phased-array antennas. Observations began in April 2019, and we report here on an initial characterization of the system performance.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Characterization of the RF Board for microwave SQUID multiplexing readout electronics

    astro-ph.IM 2026-06 unverdicted novelty 2.0

    Characterization measurements confirm that a custom RF frequency-conversion board meets the tone-power windows required for 1000-tone μMUX operation in the AliCPT readout chain.