Millimeter-wave base station for mobile broadband communication

In this paper a millimeter-wave base station operating at 28GHz for mobile communication is introduced. This base station employs 64-elements antenna phased-array to enable adaptive beamforming required for mobile communication. The phased-array is constructed of sub-arrays for optimal trade-off between performance and required coverage and beamforming capability. The phased array antenna is integrated with the transceivers on the same printed circuit board (PCB) using industry standard manufacturing process to minimize the cost and routing loss. The achieved link budget fulfills the requirements of the LOS and NLOS mobile communication in this band for distances in excess of 1Km. The field measurements depict an end-to-end EVM of better than -24dB for a 16QAM OFDM signal with 500MHz bandwidth (BW).