Antenna-User Interaction in MIMO-Enabled Laptops

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dc.contributor.authorGuterman, Jerzy
dc.contributor.authorMoreira, Antonio
dc.contributor.authorPeixeiro, Custodio
dc.contributor.authorRahmat-Samii, Yahya
dc.coverage.issue4cs
dc.coverage.volume18cs
dc.date.accessioned2016-03-18T08:55:52Z
dc.date.available2016-03-18T08:55:52Z
dc.date.issued2009-12cs
dc.description.abstractThe operation of wireless personal communication terminals very close to the user inherently faces the problem of electromagnetic (EM) coupling between the device and the biological tissues. In this paper the effects of the electromagnetic antenna-human interaction is studied for a laptop MIMO antenna system, where four integrated antenna elements can operate simultaneously. Two points of view are considered: antenna performance and EM dosimetry. The first one addresses not only the degradation of the antenna performance but includes also the effect of the human proximity on the antenna characteristics, namely scattering matrix, Total Active Reflection Coefficient (TARC), radiation efficiency and envelope correlation between port signals. The exposure of the human tissues to EM radiation is expressed in terms of Specific Absorption Rate (SAR). These characteristics are evaluated as a function of the array excitation scheme (including phased array approach and MIMO-like signaling) and compared to simple scenarios where all the power is radiated only by one antenna element.en
dc.formattextcs
dc.format.extent418-424cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2009, vol. 18, č. 4, s. 418-424. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57130
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2009/09_04_418_424.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectLaptop antennasen
dc.subjectMIMO antenna systemsen
dc.subjectTARCen
dc.subjectSARen
dc.subjectEM dosimetryen
dc.titleAntenna-User Interaction in MIMO-Enabled Laptopsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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