An outdoor antenna metrology facility for candidate Square Kilometre Array antennas

Jiwani, A. and Flexman, J. and Padhi, S. and de Vaate, J. and Hall, P. 2011. An outdoor antenna metrology facility for candidate Square Kilometre Array antennas, in Electromagnetic Compatibility Symposium (EMCSA), Nov 9-11 2011, pp. 1-4. Perth: IEEE.

Source Title

Electromagnetic Compatibility Symposium and Exhibition, EMCSA 2011 - Symposium Proceedings

Additional URLs

http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6248133

ISBN

9780987224217

School

Department of Electrical and Computer Engineering

Remarks

Copyright © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

URI

http://hdl.handle.net/20.500.11937/4797

Collection

Curtin Research Publications

Abstract

The Square Kilometre Array (SKA) will be the largest radio telescope ever built operating at multiple frequency bands. The lowest band, SKA-low, covers 70 - 450 MHz and consists of sparse aperture arrays. The International Centre for Radio Astronomy Research (ICRAR) is investigating conical spirals as one candidate antenna for SKA-low. These large (~1 m) low frequency antennas are characterized using a quick and efficient procedure called the 'car-park' pattern measurement method. To verify the viability of the method, the characteristics of scaled conical spiral antenna prototypes, measured in both the car-park and an anechoic chamber, are compared in this paper. Initial indications confirm the reliability of the car-park measurement method and, by extrapolation, its suitability measuring full-sized antennas.