Simplified assessment of specific absorption rate (SAR) for MIMO terminals

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Sammanfattning

Evaluating SAR for multi-antennas is difficult and impractical due to the arbitrary power allocation and phase of the electric fields from different antennas causing the total field to change randomly. In this context, a simplified approach was recently proposed for assessing SAR when more than one antenna is transmitting simultaneously. The metric of time averaged simultaneous peak SAR (TASPS) was derived for the purpose of showing that only the stand-alone SAR for each antenna needs to be evaluated in order to verify if the SAR for multi-antenna transmissions also stays within the exposure limit. In this paper, we briefly review the derivation and illustrate the physical mechanism underlying this result for a two-antenna prototype using stand-alone and simultaneous SAR distributions.
Originalspråkengelska
Titel på värdpublikationIEEE Antennas and Propagation Society International Symposium, 2015
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Antal sidor2
ISBN (elektroniskt)978-1-4799-7815-1
ISBN (tryckt)978-1-4799-7816-8
DOI
StatusPublished - 2015
EvenemangIEEE International Symposium on Antennas and Propagation, 2015 - Vancouver, Kanada
Varaktighet: 2015 juli 192015 juli 24

Konferens

KonferensIEEE International Symposium on Antennas and Propagation, 2015
Förkortad titelUSNC/URSI
Land/TerritoriumKanada
OrtVancouver
Period2015/07/192015/07/24

Ämnesklassifikation (UKÄ)

  • Elektroteknik och elektronik

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