20 December 2021 Engineering Development Array 2: design, performance, and lessons from an SKA-Low prototype station
Randall Wayth, Marcin Sokolowski, Jess Broderick, Steven J. Tingay, Raunaq Bhushan, Tom Booler, Riccardo Chiello, David B. Davidson, David Emrich, Budi Juswardy, David Kenney, Giulia Macario, Alessio Magro, Andrea Mattana, David Minchin, Jader Monari, Andrew McPhail, Federico Perini, Giuseppe Pupillo, Marco Schiaffino, Ravi Subrahmanyan, Andre van Es, Mia Walker, Mark F. Waterson
Author Affiliations +
Abstract

We present the Engineering Development Array 2, which is one of two instruments built as a second generation prototype station for the future Square Kilometre Low-Frequency Array. The array is comprised of 256 dual-polarization dipole antennas that can work as a phased array or as a standalone interferometer. We describe the design of the array and the details of design changes from previous generation instruments, as well as the motivation for the changes. Using the array as an imaging interferometer, we measure the sensitivity of the array at five frequencies ranging from 70 to 320 MHz.

© 2021 Society of Photo-Optical Instrumentation Engineers (SPIE) 2329-4124/2021/$28.00 © 2021 SPIE
Randall Wayth, Marcin Sokolowski, Jess Broderick, Steven J. Tingay, Raunaq Bhushan, Tom Booler, Riccardo Chiello, David B. Davidson, David Emrich, Budi Juswardy, David Kenney, Giulia Macario, Alessio Magro, Andrea Mattana, David Minchin, Jader Monari, Andrew McPhail, Federico Perini, Giuseppe Pupillo, Marco Schiaffino, Ravi Subrahmanyan, Andre van Es, Mia Walker, and Mark F. Waterson "Engineering Development Array 2: design, performance, and lessons from an SKA-Low prototype station," Journal of Astronomical Telescopes, Instruments, and Systems 8(1), 011010 (20 December 2021). https://doi.org/10.1117/1.JATIS.8.1.011010
Received: 2 August 2021; Accepted: 1 December 2021; Published: 20 December 2021
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Cited by 10 scholarly publications.
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KEYWORDS
Antennas

Calibration

Finite element methods

Prototyping

Polarization

Receivers

Sun

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