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Proceedings Paper

Dynamic beam steering at submm- and mm-wave frequencies using an optically controlled lens antenna
Author(s): T. F. Gallacher; R. Søndenå; D. A. Robertson; G. M. Smith
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Paper Abstract

We present details of our work which has been focused on improving the efficiency and scan rate of the photo-injected Fresnel zone plate antenna (piFZPA) technique which utilizes commercially available visible display technologies. This approach presents a viable low-cost solution for non-mechanical beam steering, suitable for many applications at (sub) mm-wave frequencies that require rapid beam steering capabilities in order to meet their technological goals, such as imaging, surveillance, and remote sensing. This method has the advantage of being comparatively low-cost, is based on a simple and flexible architecture, enabling rapid and precise arbitrary beam forming, and which is scalable to higher frame-rates and higher submm-wave frequencies. We discuss the various optimization stages of a range of piFZPA designs that implement fast visible projection displays, enabling up to 30,000 beams per second. We also outline the suitability of this technology across mm-wave and submm-wave frequencies as a low-cost and simple solution for dynamic optoelectronic beam steering.

Paper Details

Date Published: 31 May 2013
PDF: 8 pages
Proc. SPIE 8715, Passive and Active Millimeter-Wave Imaging XVI, 87150O (31 May 2013); doi: 10.1117/12.2015941
Show Author Affiliations
T. F. Gallacher, The Univ. of St Andrews (United Kingdom)
Aalto Univ. (Finland)
R. Søndenå, Institute for Energy Technology (Norway)
D. A. Robertson, The Univ. of St Andrews (United Kingdom)
G. M. Smith, The Univ. of St Andrews (United Kingdom)


Published in SPIE Proceedings Vol. 8715:
Passive and Active Millimeter-Wave Imaging XVI
David A. Wikner; Arttu R. Luukanen, Editor(s)

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