SKA LFAA Station Design Report

• DOI: 10.48550/arxiv.2003.12744
• Publication Date: 2020-01-01
• Authors: Eloy de Lera Acedo; Hardie Pienaar; N. Razavi‐Ghods; Jens Abraham; Edgar Colin Beltran; Ben Mort; Fred Dulwich; Giuseppe Virone; Benedetta Fiorelli; Michiel Arts; Christophe Craeye; Bui Van Ha; Keith Grainge; P. E. Dewdney; Jeff Wagg; Maria Grazia Labate; A. J. Faulkner; Jan bij Geralt de...; M. Gerbers
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; FOS: Physical sciences; 02 engineering and technology; Astrophysics - Instrumentation and Methods for Astrophysics; Instrumentation and Methods for Astrophysics (astro-ph.IM)

This report was submitted as part of the SKA Low Frequency Aperture Array Critical Design Review describing design SKA1-LOW station that took place between 2013 and 2018. The SKA1 LOW field is inscribed in a circular area having an effective diameter (centre to centre) 38 meters has 256 SKALA4 elements. document describes electromagnetic station. In particular it layout modelling characteristics effects associated with array such mutual coupling effects, side lobe pattern beam shape (eg. smoothness, calibration models) presents state art our ability measure performance validate simulation work. current LFAA node requirements, derived from L1 have evolved over last years since PDR System Baseline Design. been designed meet those requirements therefore tracked their evolution sensitivity diameter, etc.). aforementioned represent very tight space desire for high large frequency range (7 1) wide view (90 degrees cone around zenith) while keeping minimum, so filling factor but at same time allowing sufficient antennas allow easy maintenances, amongst many others. results complex design.