and millimetre-wave frequency bands with high isolation is presented. The antenna system
consists of four triple-band monopole and four dual-band dual-function millimetre-wave
antennas. The monopoles work at 2.5 áGHz (4G LTE), 3.5 áGHz (5G), and 5.2 áGHz
(WLAN) bands. The millimetre-wave antennas operate at 24áGHz and 28áGHz (5G) and
work as decoupling structures between monopole antennas to improve isolation in the sub …