Title :
Power Synthesis for Reconfigurable Arrays by Phase-Only Control With Simultaneous Dynamic Range Ratio and Near-Field Reduction
Author :
Buttazzoni, Giulia ; Vescovo, Roberto
Author_Institution :
Univ. of Trieste, Trieste, Italy
Abstract :
An iterative method of power synthesis for reconfigurable arrays of arbitrary geometry is presented, which is based on the method of successive projections. The algorithm allows to synthesize a number of desired patterns, each reconfigurable into any of the others by phase-only control. The excitation amplitudes are optimized, and their dynamic range ratio (DRR) is reduced below a given threshold. Furthermore, the radiated field can be reduced below a prescribed level in a given region close to the antenna. As a particular important case, the method allows to perform a “discrete” phase controlled beam-scanning.
Keywords :
antenna arrays; iterative methods; phase control; antenna region; arbitrary geometry; controlled beam scanning; discrete phase; excitation amplitudes; iterative method; near-field reduction; phase-only control; power synthesis; reconfigurable arrays; simultaneous dynamic range ratio; successive projections; Antenna radiation patterns; Dynamic range; Geometry; Phased arrays; Three dimensional displays; Upper bound; Dynamic range ratio reduction; near-field reduction; phase control; power synthesis; reconfigurable arrays; scanning; successive projections;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2011.2173103
