1-bit Reconfigurable Beam Steering Planar Array Antenna based on Reflectarray Feeding

In this paper, we present a method for reducing the quantization lobe in 1-bit beam steering planar array antenna. The is inspired by reflectarray feeding such way that as move away from center of array, phase becomes more negative. This type element phasing disturbs periodicity error and therefore suppresses lobe. Each antenna has two states (0 180°) are provided through symmetrical points controlled with PIN diodes. fed series microstrip line network. One prototype proposed 8×8 elements was fabricated tested at 3.4 GHz, which showed measured scan range between -45° +45° maximum level -9 dB gain variation 1.5 dB. scanning much simpler network than other antennas. overall thickness only 0.045λ 0 , lower profile reconfigurable transmitarray antennas same specifications. usable suitable candidate wireless communication applications.