Title :
Measurements of internal handset antennas and diversity configurations with a phantom head
Author :
Eratuuli, P. ; Haapala, P. ; Aikio, P. ; Vainikainen, P.
Author_Institution :
Radio Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
The performance of directive and omnidirectional handset antennas is measured in indoor and suburban outdoor environments at 2.15 GHz. The antennas are studied in free space and beside a phantom head with radiation pattern measurements and radio channel measurements. The results suggest that directive antennas are less affected by the head and give better performance than omnidirectional antennas. Also the diversity gain of two diversity arrangements is assessed and a diversity gain of about 4 dB is obtained with selection combining.
Keywords :
UHF antennas; UHF measurement; UHF radio propagation; antenna radiation patterns; antenna testing; directive antennas; diversity reception; microstrip antennas; mobile antennas; monopole antennas; telecommunication channels; telephone sets; 2.15 GHz; RCDLA; UHF; directive handset antennas; diversity configurations; diversity gain; free space; internal handset antenna measurement; monopole; omnidirectional handset antennas; performance; phantom head; radiation pattern measurements; radio channel measurements; selection combining; short-circuited microstrip antenna; Antenna measurements; Antenna radiation patterns; Directive antennas; Diversity methods; Diversity reception; Extraterrestrial measurements; Imaging phantoms; Microstrip antennas; Space technology; Telephone sets;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.699090
