Evaluation Of Rf Device Error Factors On The Beam Directivity Of A Uniform Linear Array Antenna

This paper reports the error effects of actual mmWave RF devices on beam pattern by monte carlo simulation. A mmWave beamforming by array antenna is one of the most promising technique to realize access methods which meet requirements of URLLC, mMTC, and eMBB communication simultaneously. The accuracy of analog beamforming is necessary to be increased to realize 5G or beyond 5G access. Our simulation shows individual effects of frequency, phase, and gain non-linearity characteristics on beamforming accuracy. We conclude that a proper calibration on the phase difference between array antenna elements improve the beamforming accuracy effectively and guarantee providing sufficient beam gain required in the entire communication area.