Compact MIMO Antenna with Cross Polarized Configuration
نویسندگان
چکیده
MIMO is the key technology to improve spectrum efficiency in the wireless communications. However, MIMO may perform poorly as a mobile terminal with a very small antenna. This paper describes an experimental study on the performance of a compact MIMO antenna. In order to improve the performance, a cross polarized configuration was investigated as well as a co-polarized configuration. Experiments were carried out in 2.6 GHz band with antenna element spacing from 6 mm to 5 cm. A helical antenna with a ceramic substrate is used as a radiator to make the antenna small. The experiments verified that the cross polarized configuration enables better performance compared to the co-polarized configuration. The average correlation was about 0.1 in the case of 1 cm antenna element spacing. Key-Words: Antenna, MIMO, Mobile communication, Portable phone, Correlation, Cross polarization
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تاریخ انتشار 2006