Increased interference-limited MIMO capacity with parasitic reconfigurable aperture antennas

A possible solution to allow high-rate MIMO communications in interference-limited scenarios is to employ reconfigurable antennas that optimize antenna patterns to avoid and suppress interference as well as enhance useful multipath directions. The reconfigurable aperture (RECAP) antenna [1] is a dense array of reconfigurable elements (REs), which can be manipulated in order to support many important applications. As shown in [2], a RECAP with multiple feeds can be used in a MIMO system to null the effect of interfering users and provide many fold increase in capacity compared to traditional fixed antennas. However, these findings were based solely on simulations.