3D autocorrelation coefficients of dipole antenna

Estimating Combined Correlation Functions for Dipoles in Rayleigh-Fading Scenarios

“…5 and 6, the maximum error in the quadratic model (0.10) is lower than the maximum error of the linear model (0.22), but other higher order combining possibilities or the use of weighting factors are possible, and further research is envisaged. These errors are similar to other previously reported spatial-only models [3].…”

“…Consequently, 3-D correlation models have been called for. Recently, far-field formulas have been suggested to calculate the complex crosscorrelation coefficients of dipole antennas in a 3-D model, which includes the effects of mutual coupling [2], [3]. Yet, even for this 3-D model, results are only valid for cross-polarization ratios XPR , that is, for conventional orthogonal polarization diversity.…”

“…Losses due to correlation are quantified in [1]. Mutual coupling effects on the correlation coefficients are studied in [2] and three-dimensional (3-D) models for obtaining the correlation coefficients are described in [3]. In many studies, the correlation factor is employed to study MIMO system performance by assuming that the correlation among receive antennas is independent from the correlation between transmit antennas, that is, with no transmit-receive cross-correlation.…”

A 3-Port Antenna for MIMO applications

“…(1) the correlation factor between the different radiation patterns can be calculated, [4], [5]. In (1) C i = e θ C θi + e φ C φi (i = 1, 2, 3) stands for the complex characteristic of each port i.…”