Title :
User’s head and hand influence on the diversity performance of neutralized two-antenna systems for UMTS handsets
Author :
Chebihi, A. ; Nyberg, D. ; Diallo, A. ; Luxey, C. ; Le Thuc, P. ; Staraj, R.
Author_Institution :
UMR-CNRS, Univ. of Nice-Sophia Antipolis, Nice
Abstract :
In this paper, we presented the influence of the userpsilas head and hand on the diversity performance of 0.1 lambda0 spaced PIFAs for UMTS handsets. If the DSG of the PIFAs of the handset positioned in free space is found to be very high (more than 8.5 dB), the DSG is severely degraded in the presence of the user. However, it seems that there is still an interest to add a second antenna for diversity purpose as the DSGs are around 3 dB in the UMTS Rx band. Further results with even more closely spaced PIFAs (down to 0.03 lambda0) will be presented at the conference.
Keywords :
3G mobile communication; antenna arrays; diversity reception; mobile handsets; planar inverted-F antennas; UMTS handsets; diversity gain system; hand influence; neutralized two-antenna systems; planar inverted-F antennas; spaced PIFA; user head influence; 3G mobile communication; Antenna measurements; Antennas and propagation; Bandwidth; Isolation technology; Joining processes; Prototypes; Reverberation chamber; Telephone sets; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619832
