A review of planar antennas for millimeter wave 5G network

Abstract

In order that wide implement of 5G network is realizable in the future, special features in the propagation of millimeter wave is required, which are much different from that of current operating 4G network and still have great potential to explore. As a result, the antennas used in future 5G network will be much more sophisticated in design and will need a lot of frontier technologies. The key factors in 5G millimeter wave antenna design are reconfigurable antennas, beamforming, antenna array, orbital angular momentum antennas, meta-surface antennas and massive MIMO. The purpose of this work is to illustrate some designing idea of planar antennas used in 5G millimeter wave network by presenting some of the contemporary theoretical and practical design idea investigated by this paper. Since currently there is great amount of research ongoing in this field, this paper can serve as a brief guide and introduction for those who are interested in 5G planar antennas to get a picture of the latest theories and technologies used in those designs.