Exploring Beamforming Performance Versus Complexity in Reconfigurable Aperture Antennas

Date Added: Feb 2010
Format: PDF

REConfigurable APerture (RECAP) antennas consist of a regular array of reconfigurable elements confined to an aperture, representing a generalization of the reconfigurable antenna concept. RECAPs have the potential of supporting operations like beamforming, null steering, interference suppression, adaptive matching, and frequency and bandwidth agility in a single aperture. Although very complex RECAP structures theoretically have performance that is only limited by the physical extent of the aperture, high complexity is impractical due to increased loss, biasing difficulties, and system cost.