A Dual-Band Millimeter-Wave Antenna for 5G Mobile Applications

In this work, a microstrip antenna suitable for broadband millimeter wave mobile communication is proposed. The microstrip antenna is fed by a coplanar waveguide (CPW) structure with a matching port connected to a 50-Ω resistor. The operating bandwidth of the antenna is able to cover both the 28 GHz and the 39 GHz bands for 5G millimeter wave applications. In addition, an eight-element array is developed and studied. Results show that the array can cover the beamwidth from -30° to 30° in yoz-plane, which can meet the beamforming requirement for the 5G wireless communications.