Single-Layer Antenna with Dual-Band for 5G Millimeter-Wave System

A dual-band antenna is proposed for the 5G millimeter-wave system. The proposed structure consists of two metallic layers and one dielectric substrate including a U-slot patch with additional slots. Dual-band characteristic is produced using slotted patch method. For proposed antenna, an impedance bandwidth (S11< -10 dB) of 5.3 GHz (18.9 %) and 3.3 GHz (8.7 %) is achieved with the average gain of 8.9 dB and 8.6 dB at 28 GHz and 38 GHz, respectively. The radiation patterns and realized gain of the proposed antenna are also presented.