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This paper proposed a compact phase shifter array for use in UHF RFID applications. The proposed phase shifters produce phase shifts of 180°, 90° and 45° and operate at 910 MHz with a bandwidth of 100 MHz. This phase shifter array has tremendous applications for use in phased array antennas due to its compact size. In addition, the wide bandwidth of the phase shifters allows them to be used in global...
A fully planar phased array antenna controlled by an FPGA and BJT switching electronics has been developed from scratch. The antenna is comprised of a 3x2element L-slot loaded semi-circular patch antenna array, a beamforming network with 18 phase shifters and their associated bias lines and a 1-to-6-way equal power divider. The antenna element, the phase shifters and the power dividers are individually...
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