NDLI: On the integration of MIMO systems into handheld devices

Content Provider	IEEE Xplore Digital Library
Author	Waldschmidt, C. Kuhnert, C.
Copyright Year	2004
Description	Author affiliation: Inst. fur Hochstfrequenztechnik und Elektronik, Karlsruhe Univ., Germany (Waldschmidt, C.; Kuhnert, C.)
Abstract	This work shows that it is possible to integrate several antennas into small hand-held devices to setup MIMO systems for mobile communications. The integration of three and four Inverted-F antennas into a small housing is presented. These integrated antenna arrays are analyzed by simulations of complete MIMO systems. The simulations are verified by measurements. Different quality measures for antenna arrays like the mean effective gain and for MIMO systems like the correlation properties of the channel matrix are investigated. It is shown, that a low correlation among the elements of the channel matrix can easily be obtained, even for very small antenna spacings. But realizing antenna arrays with a high efficiency, which is essential for mobile devices, is difficult The influence of a user, who holds the small device nearby the head, is also investigated. The user mainly influences the efficiency of the arrays, whereas the correlation properties remain unchanged.
Starting Page	1
Ending Page	8
File Size	533695
Page Count	8
File Format	PDF
ISBN	0780383273
DOI	10.1109/WSA.2004.1407640
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-18
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna measurements Mutual coupling Handheld computers Transmitters Transmitting antennas Receiving antennas Mobile antennas MIMO Power system modeling Antenna arrays
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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