Title :
Closely located dual PIFAs with T-slot induced high isolation for MIMO terminals
Author :
Zhang, Shuai ; Lau, Buon Kiong ; Sunesson, Anders ; He, Sailing
Author_Institution :
Sch. of Electr. Eng., KTH, Stockholm, Sweden
Abstract :
This paper presents an efficient technique to enhance the isolation between two closely spaced PIFAs for MIMO mobile terminals. The proposed decoupling method is based on a T-shape slot impedance transformer and it enables an inter-PIFA spacing of 1 mm to be achieved. The 10 dB impedance bandwidth and 20 dB isolation bandwidth cover the 2.4 GHz WLAN band (2.4-2.48 GHz), with a maximum isolation of 44 dB. The efficiency, gain, radiation patterns of the two-PIFA prototype are also verified in measurements.
Keywords :
MIMO communication; antenna radiation patterns; impedance convertors; planar inverted-F antennas; slot antennas; telecommunication terminals; wireless LAN; MIMO; T-slot antenna; WLAN; dual PIFA; frequency 2.4 GHz; gain 10 dB; gain 20 dB; impedance bandwidth; impedance transformer; mobile terminals; radiation patterns; Antennas; Bandwidth; Impedance; MIMO; Mobile communication; Mutual coupling; Shape; Antenna array mutual coupling; MIMO systems; parasitic antennas;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996952
