Title :
Mobile MIMO Phones and Their Human Exposure to Electromagnetic Fields
Author :
Baldauf, Michael A. ; Pontes, Juan A. ; Timmermann, Jens ; Wiesbeck, Werner
Author_Institution :
Univ. Karlsruhe (TH), Karlsruhe
Abstract :
A mobile phone equipped with a multiple antenna system is investigated with respect to its human exposure to electromagnetic fields. The channel conditions and the demanded capacity determine the required exictation voltages, which are passed to a commercial software tool. To get rid of the influence of various antenna distances to the shaped human head a dielectric cuboid is considered as absorbing medium. Utilizing MIMO techniques with channel knowledge at the transmitter allows a reduction of the exposure by some 95%.
Keywords :
MIMO communication; antenna arrays; electromagnetic fields; mobile handsets; radio transmitters; commercial software tool; dielectric cuboid; electromagnetic fields; mobile MIMO phones; multiple antenna system; Base stations; Channel capacity; Dielectrics; Electromagnetic fields; Humans; MIMO; Mobile antennas; Mobile handsets; Software tools; Voltage;
Conference_Titel :
Electromagnetics in Advanced Applications, 2007. ICEAA 2007. International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-0767-5
Electronic_ISBN :
978-1-4244-0767-5
DOI :
10.1109/ICEAA.2007.4387225
