Beam Steering A Quadrifilar Helix Antenna At S-Band Using A Monopole

In this paper, an alternative approach to beam steering is presented through the use of a novel quadrifilar helix antenna, with a monopole in its center to get a low form factor and high performance. By altering the phase and amplitude of the monopole, the beam can be 'steered' 360 degrees in the phi direction, and 90 degrees in the theta direction. Simulated test data showing antenna performance will be compared to current beam steering methodologies.