Ten-port Sub-6G antenna for 5G smartphone applications

A 10-port multi-system antenna operating in 5G NR (3300 MHz-3600 MHz, 4800 MHz-5000 MHz), 4G LTE (896 MHz-960 MHz, 1710 MHz-2170 MHz, 2500 MHz-2690 MHz), WiFi (2400 MHz-2500 MHz, 5150 MHz-5850 MHz) and Bluetooth (2400 MHz-2500 MHz), etc. bands for 5G smartphone application is proposed. All of the proposed antennas is composed of co-planar waveguide (CPW) feeding structure, multi-bended monopole trace and a printed ground-line which protrudes from ground-plane, to increase isolation and operating bandwidth. It is found that isolation of more than 15 dB can be achieved between each antenna. The human’s hand effect on impedance bandwidth and radiation characteristics of the proposed antenna is studied. Experimental results are shown to verify the validity of theoretical work.