Optically beamformed wideband array performance

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor	Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
dc.contributor.author	Jofre Roca, Lluís
dc.contributor.author	Stoltidou, Chysavgi
dc.contributor.author	Blanch Boris, Sebastián
dc.contributor.author	Mengual, Teresa
dc.contributor.author	Vidal, Borja
dc.contributor.author	Marti, Javier
dc.contributor.author	Mckenzie, Iain
dc.contributor.author	Cura, J.M. del
dc.date	2008-06
dc.identifier.citation	Jofre, L. [et al.]. Optically beamformed wideband array performance. "IEEE transactions on antennas and propagation", Juny 2008, vol. 56, núm. 6, p. 1594-1604.
dc.identifier.citation	0018-926X
dc.identifier.citation	10.1109/TAP.2008.923355
dc.identifier.uri	http://hdl.handle.net/2117/20072
dc.language.iso	eng
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes
dc.subject	Antenna arrays
dc.subject	Microwave photonics Optical beamforming Phased array antennas Spatial light modulator SLM
dc.subject	Antenes -- Agrupacions -- Disseny
dc.title	Optically beamformed wideband array performance
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	IEEE Antennas and Propagation Society Research Awards for 2009
dc.description.abstract	Optical beamforming networks (OBFNs) are an interesting alternative for the design of wideband antenna arrays, mainly due to their low losses and weight, their high parallel processing capabilities and their electromagnetic immunity. Nevertheless, for a practical implementation, different technological and architectural tradeoffs need to be assessed. In this paper, the performance of an OBFN system is analytically studied and experimentally demonstrated. The study forms part of the optical beamforming network project, a multigroup research project supported by the European Space Agency (ESA). Differently from bulky free-space geometries, the architecture is based on fiber-optic delay lines for the time delays generation and on a spatial light modulator for the phase shifts generation. Experimental results for an X-band prototype are provided, showing beam steering accuracy, multibeam capability, amplitude distribution weighting and wideband operation.
dc.description.abstract	Peer Reviewed
dc.description.abstract	Award-winning

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