NDLI: Antenna mutual coupling effects on correlation, efficiency and Shannon capacity

Content Provider	IEEE Xplore Digital Library
Author	Stjernman, Anders
Copyright Year	2006
Description	Author affiliation: Antenna Research Center, Ericsson Research, Ericsson AB, SE 417 56 Göteborg, Sweden (Stjernman, Anders)
Abstract	MIMO (multiple-input-multiple-output) systems make use of multiple antennas at both ends of a communication link to exploit the spatial dimension for increasing the capacity. Correlation of the antenna signals has an affect on the capacity of a MIMO implementation. High correlation levels occur mainly for compact antenna realizations, where the separation of the antenna elements is small and the mutual coupling is strong. The antenna mutual coupling distorts the antenna radiation patterns and the input impedances, and therefore affects the correlation level and the efficiency. The correlation level is decreased by coupling, which would improve the Shannon capacity, but the effiency of the antenna system is also decreased, which leaves the Shannon capacity nearly unchanged as compared to the case when neglecting coupling effects. The Shannon capacity is increased in a interference limited receiving situation and can also be increased in a transmitting situation in a narrow frequency band by using a decoupling network.
Starting Page	1
Ending Page	6
File Size	209153
Page Count	6
File Format	PDF
ISBN	9789290929376
DOI	10.1109/EUCAP.2006.4584578
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-06
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	ESA
Subject Keyword	Mutual coupling Dipole antennas Transmitters Working environment noise OFDM Interference Antennas and propagation MIMO Eigenvalues and eigenfunctions Signal to noise ratio
Content Type	Text
Resource Type	Article

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