Analysis of MIMO Diversity Improvement Using Circular Polarized Antenna

MIMO (Multiple Input Multiple Output) technique is one of the important means to enhance the system capacity. Diversity gain could be acquired by using traditional ±45° dual-polarized antenna, but in the scenario where multipath scattering is not strong, power-unbalance in two polarizations caused b...

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Bibliographic Details
Published in:International journal of antennas and propagation 2014-01, Vol.2014 (2014), p.1-9
Main Authors: Wang, Jianquan, Li, Xinzhong, Lv, Zhaobiao
Format: Article
Language:English
Subjects:
Antennas
Circular polarization
Gain
Lightning
Polarization
Receivers & amplifiers
Receiving
Scattering
Transmission
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Summary:MIMO (Multiple Input Multiple Output) technique is one of the important means to enhance the system capacity. Diversity gain could be acquired by using traditional ±45° dual-polarized antenna, but in the scenario where multipath scattering is not strong, power-unbalance in two polarizations caused by polarization mismatching between transmitting and receiving antennas will reduce diversity gain. This problem can be effectively solved by using circular polarized antennas. In this paper, through theory analysis and test, the improvement of MIMO diversity gain using circular polarization antenna is analyzed.
ISSN:1687-5869
1687-5877
DOI:10.1155/2014/570923