Title :
Control system for compensation of antenna mistuning and absorption caused by user´s index finger
Author :
Berg, M. ; Salonen, E.
Author_Institution :
Dept. of Electr. & Inf. Eng., Univ. of Oulu, Oulu, Finland
Abstract :
In this paper, an antenna arrangement and a control system that decreases the losses caused by the user of the mobile terminal, is presented. Performance of the system is evaluated with the presence of user hand and index finger. Experimental results prove that two switchable antenna elements are able to increase the total efficiency up to 2.5 dB at 900 MHz.
Keywords :
UHF antennas; mobile antennas; telecommunication terminals; antenna arrangement; antenna control system; antenna mistiming compensation; frequency 900 MHz; mobile terminal; user index finger; Antenna feeds; Antenna measurements; Antennas and propagation; Control systems; Electromagnetic wave absorption; Fingers; Impedance; Mobile antennas; Reflector antennas; Switches;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
