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

Författare

Summary, in English

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.

Publiceringsår

2015

Språk

Engelska

Publikation/Tidskrift/Serie

IEEE Antennas and Propagation Society International Symposium, 2015

Dokumenttyp

Konferensbidrag

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

IEEE International Symposium on Antennas and Propagation, 2015

Conference date

2015-07-19 - 2015-07-24

Conference place

Vancouver, Canada

Status

Published

Projekt

  • EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications

Forskningsgrupp

  • Radio Systems
  • Electromagnetic theory

ISBN/ISSN/Övrigt

  • ISBN: 978-1-4799-7816-8
  • ISBN: 978-1-4799-7815-1