By Topic

Experiments With Compact Antenna Arrays for MIMO Radio Communications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Browne, D.W. ; Dept. of Electr. Eng., California Univ., Los Angeles, CA ; Manteghi, M. ; Fitz, M.P. ; Rahmat-Samii, Y.

Realizing antenna arrays that preserve channel capacity in multiple-input multiple-output (MIMO) radio communications is a challenge because of the detrimental effects of mutual coupling. The fact that mutual coupling becomes more pronounced as antenna spacing decreases is therefore a critical issue with compact arrays used in portable MIMO radios. The contributions made in this paper include the realization of compact MIMO arrays designed to preserve channel capacity and the characterization of these compact arrays' performance in field measurements using MIMO radios. A multiport metric is used to characterize the compact arrays in a way that more appropriately measures array performance under MIMO signalling conditions than the traditional scattering matrix characterization. Field measurements show the extent and proportion of the effect that correlation and radiation efficiency have on MIMO channel capacity. The compact arrays' strong performance in field measurements is explained by their ability to preserve the MIMO channel's eigenstructure. Results also show that mutual coupling prevents channel capacity from scaling linearly with the number of antennas. Guidelines for compact MIMO array design are given with supporting results from field measurements

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:54 ,  Issue: 11 )