Dual-Polarized Yagi-Like Multilayered Slot Antenna for 5G C-band Application

In this paper, a design of dual-polarization Yagi- like multilayered slot antenna is proposed. The Operating band of the design is covering the band of 3.4 to 3.6 GHz for fifth- generation (5G) C-band. The antenna consists of a ring-shaped slot, two directors by using ring-shaped slot, and a pair of double L-shaped feeds on the back to excited slot antenna, which is forming a design of vertically stacked antenna. The overall size of Yagi antenna is 42 × 42 × 60 mm
³
. The introduction of the director 2 with a thin PLA (Polylactic Acid) coating and with 8 small circular apertures located on the slot is to enhance the impedance match. Simulated and measured S11 and S22 results are below of -10dB and S21 for the two feeds are less than -20dB. The simulated antenna gains of the design achieve 9.4-10.7dBi. Since port1 and port2 are almost symmetrical, both horizontal and vertical planes provide a stable radiation pattern. So it is good candidate for 5G C-band wireless system.