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Investigation on Cavity/Slot Antennas for Diversity and MIMO Systems: The Example of a Three-Port Antenna

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4 Author(s)
Sarrazin, J. ; IREENA, Univ. of Nantes, Nantes ; Mahe, Y. ; Avrillon, S. ; Toutain, Serge

The use, as diversity antennas, of electromagnetic cavities with radiated slots etched on their faces is discussed. From this kind of geometries, many antenna configurations can be designed in order to provide uncorrelated signals. As an example, a three-port antenna which combines polarization and radiation pattern diversities is presented. The structure operates in the 5 GHz band and exhibits a coupling between input ports less than -30dB in measurement. Envelope correlations between radiation patterns of each port are less than 0.035 which makes this structure well-suited for antenna diversity systems.

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Antennas and Wireless Propagation Letters, IEEE  (Volume:7 )