Review on the New Antenna Evolution for Next Generation WiFi-7/8 Systems

This article reviews the reconfigurable antenna, beamforming array, millimeter-wave antenna, and miniaturized MIMO antennas which have attracted extensive attention in WiFi-7/8 systems. The share aperture antenna and packaged array are described. The methodologies for pattern reconfigurable antennas, miniaturized MIMO antennas, and full-plane coverage pattern diversity antennas are illustrated. Furthermore, a comparative analysis is conducted on the methods of miniaturized phased arrays, digital intelligent arrays, and nulling forming arrays based on diversity antennas. The fundamental principles and current research hotspots of these technologies are highlighted. The anticipated development path of future beam-controllable antennas is also discussed.