BEAM-STEERER USING RECONFIGURABLE PBG GROUND PLANE

摘要

Phased arrays with reduced cost and increased power handling capability are important for commercial applications. This invention demonstrates beam-steering arrays (510) using reconfigurable periodic structures in the ground plane (400) without solid-state phase shifters. A linearly discrete beam-steering of 35 DEG in steps of approximately 6 DEG has been achieved at a fixed frequency of 5.6 GHz. The main beam power varied less than 2 dB over the whole range of beam-steering. A frequency-dependent beam-steering of 15 DEG is also achieved from 5 GHz.