Summary
International Symposium on Antennas and Propagation
2008
Session Number:3A06
Session:
Number:3A06-4
Analysis of Spatial Correlation with respect to Polarization and Pattern
Dao Manh Tuan, Seong-Ook Park,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
MIMO system, which can satisfy the demand of high capacity in wireless communications, has been paid much attention through years. Due to the fact that capacity of MIMO depends on the correlation between the waves impinging on two antenna elements, many studies on properties of the correlation have been widely carried out [1-4]. It has been shown that correlation depends on polarization, pattern of elements, spacing, and power azimuth spectrum (PAS). Close form of correlation and dependence of correlation on PAS and directive antenna are presented in [1], [2] and [3]. However, by assuming that patterns of all elements are identical or omidirectional, impact of patterns and polarization between elements on correlation is not considered. In this paper, we derive and analyze the spatial correlation with respect to polarization and pattern, based on a physically intuitional stochastic channel model for multiple-input multiple-output (MIMO) using polarized array. Simulations are performed using two dipoles with various configurations to investigate effects of polarization, patterns between elements. Results show that the correlation is very sensitive to orthogonality of pattern and polarization.