Beamsteering Phased Array Antenna using a Full 360° and Programmable Continuous Phase Shifter for Indoor Localization

This paper presents a design of phased array antenna using a full 360 degrees and programmable continuous phase shifter based on angle of arrival techniques of indoor localization. This antenna system allows to electrically steer main beam direction smoothly, so the number of beams is independent of the number of antenna elements as previous research, and resolution for indoor localization system is improved. Antenna elements are fed through parallel feed network including Wilkinson power dividers and full 360 degrees, continuous phase shifters. Radiation patterns, experimented from -45 degrees to 45 degrees in an anechoic chamber, show that the main beam direction is quite close to the desired direction in simulation, and the side lobe level is less than main beam about 10dB.