Conferência
User Interaction with Antenna Arrays in MIMO-Enabled Laptops
European Conference on Antennas and Propagation
— 2009 — European Conference on Antennas and Propagation
Informações chave
Autores:
Publicado em
03/01/2009
Resumo
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.
Detalhes da publicação
Autores da comunidade :
Jerzy Guterman
ist46468
Versão da publicação
VoR - Versão publicada
Editora
European Conference on Antennas and Propagation
Título do contentor da publicação
European Conference on Antennas and Propagation
Local da conferência
Berlin, Alemanha
Data de início conferência
03/23/2009
Data de término da conferência
03/27/2009
Domínio Científico (FOS)
electrical-engineering-electronic-engineering-information-engineering - Engenharia Eletrotécnica, Eletrónica e Informática
Idioma da publicação (código ISO)
eng - Inglês
Acesso à publicação:
Acesso apenas a metadados