Impact of Antenna Correlation in Electrically Dual-polarized Small Antennas

Author

Jun Chen ; Talebi, Farzad ; Pratt, Thomas

Author_Institution

Dept. of Electr. Eng., Univ. of Notre Dame Notre Dame, Notre Dame, IN, USA

fYear

2014

fDate

6-8 Oct. 2014

Firstpage

394

Lastpage

398

Abstract

In spatially correlated channels, the diversity provided by dual-polarized (DP) antenna systems is known to provide an increase in spectra efficiency compared to traditional copolarized (CP) systems. However, as the antenna dimensions decrease relative to the wavelength, antenna correlations will increase due to the electrically-small antenna elements. In this work, we model the impact of electrically small antennas through mode coupling and characterize performance degradations in wide-band Rayleigh fading channel models, where performance is measured in terms of bit error rates and packet error rates. System performance is measured using a multiple-input, multiple output (MIMO) emulation test bed. Signal-to-noise ratio (SNR) penalties due to antenna correlations are found to exceed 10 dB when coupling factors are significant.

Keywords

MIMO communication; Rayleigh channels; antenna radiation patterns; broadband antennas; diversity reception; error statistics; multifrequency antennas; radiofrequency spectra; DP antenna system diversity; MIMO emulation testbed; SNR; bit error rate; dual-polarized antenna system; electrically dual-polarized small antenna correlation; electrically small antenna element; mode coupling; multiple input multiple output emulation testbed; packet error rate; signal-to-noise ratio; spatially correlated channel; spectra efficiency; wideband Rayleigh fading channel model; Antenna arrays; Bit error rate; Correlation; Couplings; Emulation; MIMO;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference (MILCOM), 2014 IEEE

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/MILCOM.2014.71

Filename

6956792