Characterization of SKA-AAlow antenna elements in the array environment

Author

Raucy, C. ; de Lera Acedo, E. ; Razavi-Ghods, N. ; Craeye, C.

Author_Institution

ICTEAM, Univ. Catholique de Louvain, Louvain-la-Neuve, Belgium

fYear

2012

Firstpage

514

Lastpage

517

Abstract

The electromagnetic modeling and testing is presented for antenna elements devoted to the low frequency band of the Square Kilometre Array (SKA) telescope [1]. Covering a band from 70 to 450 MHz, these elements consist on a log-periodic dipole array (LPDA) model and they have been designed for maximum sensitivity across the band in the region +/- 45 degrees from zenith. A 16-element array (AAVS0 - Aperture Array Verification System 0) has been built in Lords Bridge, Cambridge, UK, and it is being tested to validate the electromagnetic properties of the antenna elements and front-end. We focus on the modeling of these elements and compare simulated and measured data for simulation software validation.

Keywords

UHF antennas; VHF antennas; dipole antenna arrays; log periodic antennas; radiotelescopes; 16-element array; AAVS0; Aperture Array Verification System 0; Cambridge; LPDA model; Lords Bridge; SKA telescope; SKA-AAlow antenna element characterization; UK; array environment; electromagnetic modeling; electromagnetic properties; electromagnetic testing; frequency 70 MHz to 450 MHz; log-periodic dipole array model; simulation software validation; square kilometre array telescope; Antenna arrays; Antenna measurements; Arrays; Impedance; Moment methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications (ICEAA), 2012 International Conference on

Conference_Location

Cape Town

Print_ISBN

978-1-4673-0333-0

Type

conf

DOI

10.1109/ICEAA.2012.6328681

Filename

6328681