72 citations · 106 across the 5 of their papers we have counts for
5 papers
Spectral performance of SKA Log-periodic Antennas I: Mitigating spectral artefacts in SKA1-LOW 21-cm cosmology experiments
Eloy de Lera Acedo, Cathryn M. Trott, Randall B. Wayth +6
This paper is the first in a series of papers describing the impact of antenna instrumental artefacts on the 21-cm cosmology experiments to be carried out by the low frequency inst…
Characterization of a Low-Frequency Radio Astronomy Prototype Array in Western Australia
A. T. Sutinjo, T. M. Colegate, R. B. Wayth +12
We report characterization results for an engineering prototype of a next-generation low-frequency radio astronomy array. This prototype, which we refer to as the Aperture Array Ve…
Antenna array characterization via radio interferometry observation of astronomical sources
T. M. Colegate, A. T. Sutinjo, P. J. Hall +12
We present an in-situ antenna characterization method and results for a "low-frequency" radio astronomy engineering prototype array, characterized over the 75-300 MHz frequency ran…
An Axi-Symmetric Segmented Composite SKA Dish Design: Performance and Production Analysis
M. V. Ivashina, R. Bakker, J. G. bij de Vaate +4
A concept of an axi-symmetric dish as antenna reflector for the next generation radio telescope - the Square Kilometre Array (SKA) - is presented. The reflector is based on the use…
Beamforming Techniques for Large-N Aperture Arrays
A J Faulkner, K Zarb Adami, J. G. Bij de Vaate +2
Beamforming is central to the processing function of all phased arrays and becomes particularly challenging with a large number of antenna element (e.g. >100,000). The ability to b…