Conference
User Interaction with Antenna Arrays in MIMO-Enabled Laptops
European Conference on Antennas and Propagation
— 2009 — European Conference on Antennas and Propagation
Key information
Authors:
Published in
03/01/2009
Abstract
Operation of wireless personal communications terminals in the near vicinity of the user inherently faces the problem of electromagnetic (EM) coupling between the device and the biological tissues. In this paper the effects of electromagnetic human interaction is studied for a laptop MIMO array, where four integrated antenna elements can operate simultaneously. Two points of view are considered: array performance and EM dosimetry. The first one addresses not only the degradation of antenna array performance but includes also the effect of the human proximity on the array 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). All those characteristics are evaluated as a function of the array excitation scheme (including phased array approach and MIMO- like signalling) and compared to simple scenarios where all the power is radiated only by one antenna element.
Publication details
Authors in the community:
Jerzy Guterman
ist46468
Publication version
VoR - Version of Record
Publisher
European Conference on Antennas and Propagation
Title of the publication container
European Conference on Antennas and Propagation
Location of the conference
Berlin, Alemanha
Conference date start
03/23/2009
Conference date end
03/27/2009
Fields of Science and Technology (FOS)
electrical-engineering-electronic-engineering-information-engineering - Electrical engineering, electronic engineering, information engineering
Publication language (ISO code)
eng - English
Rights type:
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