Title :
Radiation efficiency of handheld phones
Author :
Pedersen, Gert Frølund ; Tartiere, Mathieu ; Knudsen, Mikael B.
Author_Institution :
Center for Personkommunikation, Aalborg Univ., Denmark
Abstract :
Measurements of radiation efficiency for a handheld phone equipped with a patch and a helical antenna operated near the human user have been performed. Both measurements include a simple head plus hand phantom and live persons are considered. The position of the hand on the phone is found to be the main reason for the large variation in radiation efficiency among persons. The tilt angle of the phone and the distance between the head and phone only play a minor role
Keywords :
antenna radiation patterns; antenna testing; loss measurement; microstrip antennas; mobile antennas; telephone sets; antenna radiation patterns; bodyloss; distance; hand phantom; hand position; handheld phones; head; helical antenna; live persons; measurements; patch antenna; radiation efficiency measurement; tilt angle; Absorption; Antenna measurements; Helical antennas; Humans; Imaging phantoms; Loss measurement; Patch antennas; Performance evaluation; Power measurement; Testing;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851351
