26 May 2011 Rapid beamsteering reflectarrays for mm-wave and submm-wave imaging radars
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Abstract
Recent developments in millimetre to submillimetre-wave imaging radars with excellent ranging resolution provide an attractive route towards stand-off imaging of concealed explosives at ranges up to several tens of meters. Present systems typically rely on only one transceiver, coupled with an optomechanical scanning system for image formation. This limits the image acquisition speed to several seconds/frame. Frame rate can in principle be increased with increasing the channel count but this adds substantially to the system complexity and cost, while only providing a modest speed increase. In this paper we present preliminary designs for rapid electronic beam steering system that could provide a way towards real-time millimetre-wave to submillimetre-wave imaging radars.
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Arttu Luukanen, Arttu Luukanen, Juha Ala-Laurinaho, Juha Ala-Laurinaho, David Gomes Martins, David Gomes Martins, Janne Häkli, Janne Häkli, Päivi Koivisto, Päivi Koivisto, Pekka Pursula, Pekka Pursula, Pekka Rantakari, Pekka Rantakari, Jussi Säily, Jussi Säily, Aleksi Tamminen, Aleksi Tamminen, Reijo Tuovinen, Reijo Tuovinen, Markku Sipilä, Markku Sipilä, } "Rapid beamsteering reflectarrays for mm-wave and submm-wave imaging radars", Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 80220M (26 May 2011); doi: 10.1117/12.887068; https://doi.org/10.1117/12.887068
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