[Institution of Engineering and Technology 12th European Conference on Antennas and Propagation (EuCAP 2018) - London, UK (9-13 April 2018)] 12th European Conference on Antennas and Propagation (EuCAP 2018) - Electronically Steerable Circularly Polarized Planar Antenna

摘要： This paper presents a steerable, circularly polarized planar antenna operating at 2.45 GHz. The design employs a central omni-directional circularly polarized active element surrounded by electronically controllable parasitic elements that are used to steer the beam in the desired direction. The proposed antenna is capable of steering the beam in an arbitrary direction. The antenna has a 3 dB gain and an axial ratio of less than 2 dB in the direction of radiation.