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dc.contributor.authorTyler, Nevilleen_GB
dc.contributor.authorAllen, Benen_GB
dc.contributor.authorAghvami, A.Hamiden_GB
dc.date.accessioned2013-02-28T12:18:28Z
dc.date.available2013-02-28T12:18:28Z
dc.date.issued2004-12
dc.identifier.citationTyler, N., Allen, B. and Aghvami, H. (2004) 'Adaptive antennas: The calibration problem', Communications Magazine, IEEE, 42 (12), pp.114-122.en_GB
dc.identifier.issn0163-6804
dc.identifier.doi10.1109/MCOM.2004.1367563
dc.identifier.urihttp://hdl.handle.net/10547/270636
dc.description.abstractAdaptive antennas are recognized as a means of increasing the performance of communications systems. However, practical realization of such systems relies on suitable calibration of distortion effects caused by the circuitry and antenna structures. This work presents a detailed analysis of the classes of distortion that degrade the performance of adaptive antennas. This uses the results of an adaptive antenna testbed employing an eight-element circular array to illustrate the impact of temperature on performance. Design techniques that aid calibration are then described. In particular, digital downconversion, array design, harmonic sampling, sample clock dither, and clock management are discussed as a means of designing an adaptive array with the calibration problem in mind.
dc.language.isoenen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCen_GB
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1367563en_GB
dc.rightsArchived with thanks to IEEE Communications Magazineen_GB
dc.titleAdaptive antennas: the calibration problemen
dc.typeArticleen
dc.identifier.journalIEEE Communications Magazineen_GB
html.description.abstractAdaptive antennas are recognized as a means of increasing the performance of communications systems. However, practical realization of such systems relies on suitable calibration of distortion effects caused by the circuitry and antenna structures. This work presents a detailed analysis of the classes of distortion that degrade the performance of adaptive antennas. This uses the results of an adaptive antenna testbed employing an eight-element circular array to illustrate the impact of temperature on performance. Design techniques that aid calibration are then described. In particular, digital downconversion, array design, harmonic sampling, sample clock dither, and clock management are discussed as a means of designing an adaptive array with the calibration problem in mind.


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