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Channel Capacity Evaluation of MIMO Antenna Based on Eigenvalues of S-Parameter
Naoki HONMA Kentaro MURATA Hiroshi SATO Koichi OGAWA Yoshitaka TSUNEKAWA
IEICE TRANSACTIONS on Communications
Publication Date: 2016/01/01
Online ISSN: 1745-1345
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014)
Category: Antennas and Propagation
MIMO, capacity, S-parameter,
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In this paper, a method of calculating the mean channel capacity based on S-parameter of MIMO (Multiple-Input Multiple-Output) antenna is proposed. This method exploits the correlation matrix calculated from the antenna S-parameter matrix, and offers highly accurate estimates of the mean channel capacity without dependence on SNR (Signal-to-Noise Ratio). The numerical and experimental results revealed that the proposed method can calculate the channel capacity with fair accuracy independent of the number and spacing of the antenna elements if the radiation efficiency is sufficiently high.