Title :
Mutual coupling effects on the performance of MIMO wireless channels
Author :
Li, Xin ; Nie, Zai-ping
Author_Institution :
Sch. of Electr. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Analytical expressions for both the mean received power of each antenna and the spatial correlation (SC) between antennas, in the presence of antenna mutual coupling (MC), are provided. The effect of MC on the mean power imbalance and SC between a pair of mutually coupled antennas is explicitly derived, and the conditions under which MC has no effect on the SC an also identified. The effect of MC on the capacity of multiple-input-multiple-output wireless channels is investigated numerically, which shows the decorrelation resulting from MC is a tradeoff between the mean direction of arrival and the pattern diversity due to MC.
Keywords :
MIMO systems; channel capacity; correlation methods; coupled circuits; diversity reception; MIMO wireless channel capacity; antenna spatial correlation; decorrelation; mean power imbalance; multiple-antenna array; mutual coupling effects; mutually coupled antennas; pattern diversity;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2004.840252
