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| Title | Cross-correlation and total efficiencies of two closely spaced sleeve dipole antennas |
| Publication Type | Conference Paper |
| Year of Publication | 2005 |
| Authors | Hynes, C. G., P. Hui, J. van Wonterghem, and D. G. Michelson |
| Conference Name | Antennas and Propagation Society International Symposium, 2005 IEEE |
| Pagination | 799 -802 vol. 1B |
| Keywords | 3D anechoic chamber measurements, 3D uniform field incidence, anechoic chambers (electromagnetic), antenna coupling, antenna radiation patterns, cross-correlation coefficient, cross-polarisation ratio, dipole antennas, dipole separation distance, diversity performance prediction, diversity reception, microwave studio numerical simulations, pattern deformations, polarisation, S-parameter measurements, S-parameters, sleeve dipole antennas |
| Abstract | This paper shows that for the special case of 3D uniform field incidence, with a cross-polarisation ratio (XPR) near unity, the cross-correlation coefficient and total efficiency are the measures for predicting diversity performance and can be estimated from measured 5-parameters. The results for the cross-correlation coefficients and efficiencies, as a function of dipole separation distance, are compared for two parallel side-by-side sleeve dipole antennas using three different methods: 3D anechoic chamber measurements, CST microwave studio numerical simulations, and S-parameter measurements. It is shown that the total efficiency is a critical diversity performance measure since the cross-correlation coefficients are very low due to pattern deformations and large efficiency degradations occur due to antenna coupling |
| URL | http://dx.doi.org/10.1109/APS.2005.1551685 |
| DOI | 10.1109/APS.2005.1551685 |