Compact-antenna directivity gets a boost

An antenna’s directivity indicates how well its radiation pattern can be directed in space. Directivity that exceeds theoretical limits is called super-directivity. CEA-Leti researchers recently experimented with super-directivity, using miniature antennas. And the performance they obtained was impressive!
The researchers placed several elements—coupled and charged with complex impedances—in the immediate vicinity of a radiating source. The charges were calculated using a special patented method. The result was significant directivity with antennas five times smaller than those employed in traditional techniques.
The development was part of the French National Research Agency-funded Socrate project. The project’s industrial partners are now impatiently awaiting the completion of demonstrators for geolocation applications.

Contact: antonio.clemente@cea.fr

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