Title :
A decorrelated closely spaced array of four slot antennas backed with SIW cavities for MIMO communications
Author :
Dumanli, Sema ; Railton, Chris J. ; Paul, Dominique L.
Author_Institution :
Electr. Electron. Eng. Dept., Univ. of Bristol Centre for Commun. Res., Bristol, UK
Abstract :
An array of four slot antennas backed with substrate integrated waveguide (SIW) cavities is presented for application to multiple input multiple output (MIMO) systems. Two 0.18 ¿ spaced antennas are decorrelated by the use of a rat race hybrid. An investigation based on simulations and measurements has been carried out. The impedance matching and the radiation characteristics of these structures were studied using the finite difference time domain (FDTD) technique. The array performance is judged by considering the correlation coefficients between the elements and the MIMO channel capacity.
Keywords :
MIMO communication; antenna arrays; antenna radiation patterns; channel capacity; finite difference time-domain analysis; impedance matching; substrate integrated waveguides; MIMO channel capacity; MIMO communications; decorrelated closely spaced array; finite difference time domain technique; four slot antennas; impedance matching; radiation characteristics; rat race hybrid; substrate integrated waveguide cavities; Antenna arrays; Antenna measurements; Antennas and propagation; Channel capacity; Decorrelation; Finite difference methods; MIMO; Railway engineering; Resonance; Slot antennas;
Conference_Titel :
Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-2720-8
Electronic_ISBN :
978-1-4244-2721-5
DOI :
10.1109/LAPC.2009.5352550
