Measured variation in performance of handheld antennas for a large number of test persons

Abstract

This work investigates the variation in the Mean Effective Gain (MEG) for a large number of test persons in order to find how much the difference in anatomy and per- sons who wear glasses etc. changes the MEG (i.e. the re- ceived signal power with respect to a reference). The evaluation was carried out in a typical GSM-1800 urban micro cell with the base station located outdoor approxi- mately 700m from the mobile. The mobile was located in office like environments. Peak variations in the MEG among different persons of more than 10 dB were found and the difference between "no person present" and a per- son present is on the average 3 dB for a directive patch antenna, 6dB for a whip antenna and 10 dB for a helical antenna.