Title :
Characterization of Performance of a Mobile MIMO Antenna in Free Space
Author :
Won-Woo Lee ; Byung-Ho Rhee
Author_Institution :
Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
This letter presents an antenna design method for a dual antenna with high isolation for mobile stations (MSs) and includes a verification method for improving the correlation performance of an MS that uses a proposed multiple-input-multiple-output (MIMO) antenna by using MIMO over-the-air (OTA) channel models. The large-scale parameters for the MIMO OTA channel models are important because they determine the fixed geometrical parameters to be used for channel impulse response realization. The correlation performance of an MS has a strong relation to the cross-polarization discrimination (XPD) of the second branch antenna both numerically and experimentally. This study applies modern technology to implement MIMO antenna switch high isolation by selecting Band 5 to have low-frequency fabricated antenna samples that have several XPD values, thereby comparing their characteristics.
Keywords :
MIMO communication; correlation methods; electromagnetic wave polarisation; mobile antennas; transient response; wireless channels; MIMO OTA channel model; MIMO over-the-air channel model; antenna design method; channel impulse response realization; cross polarization discrimination; dual antenna; fixed geometrical parameter; free space; high isolation; large-scale parameter; mobile MIMO antenna; mobile station correlation performance; multiple input multiple output antenna; second branch antenna; verification method; Antenna measurements; Channel models; Correlation; MIMO; Mobile antennas; Mobile communication; Channel model; correlation; cross-polarization discrimination (XPD); multiple-input–multiple-output (MIMO); over-the-air (OTA); polarization;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2280465
