New compact dual polarised dipole antenna for MIMO communications

A dual-polarisation dipole antenna is investigated, intended for use as one of three collocated orthogonal antennas in a polarisation-diversity Multiple-Input Multiple-Output (MIMO) communication system. The antenna actually consists of two overlaid dipoles, one electric and the other magnetic, such...

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Bibliographic Details
Main Authors: Usman, M., Abd-Alhameed, R. A., Dama, Y. A. S., Excell, P. S., Zhou, D., Ibrahim, B., Elkhazmi, E. A.
Format: Conference Proceeding
Language:English
Subjects:
Antenna radiation patterns
Bandwidth
Channel capacity
Dipole antennas
Dual-polarisation antenna
Finite difference methods
Finite Difference Time Domain method (FDTD)
Magnetic domains
MIMO
Mobile communications
Multiple-Input Multiple-Output communications (MIMO)
Polarisation diversity
Polarization
Scattering
Time domain analysis
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Summary:A dual-polarisation dipole antenna is investigated, intended for use as one of three collocated orthogonal antennas in a polarisation-diversity Multiple-Input Multiple-Output (MIMO) communication system. The antenna actually consists of two overlaid dipoles, one electric and the other magnetic, such that their radiation patterns are nominally identical but they are cross-polarised and hence only interact minimally. Using Finite Difference Time Domain (FDTD) and HFSS simulations, it was found that the antenna performed broadly as expected, although the engineering to create a physical realisation would be challenging. In principle, however, a system using two of the triplicated antennas could, in a richly scattering environment, achieve a six-fold increase in channel capacity for the same bandwidth as a traditional line-of-sight link. Furthermore the channel capacity of the antennas has been investigated using various power azimuth spectrums.
DOI:10.1109/WSA.2010.5456429