Dual band (28/38 GHz) CPW slot directive antenna for future 5G cellular applications

A design and analysis of a 28/38 GHz dual-band CPW slot directive antenna are presented. To obtain a dual band at 28/38 GHz that covers 5G applications, chambered rectangular patches are printed on a low permittivity “εr2=2.2” grounded substrates with a 0.254-mm-thick where it is fed by a 50Ω microstrip line on the backside through a staircase rectangular apertures etched in the ground plane. The simulated results show that the designed antenna has dual band at 28 and 38 GHz for 5G system. The antenna provides almost directional patterns with acceptable gain values at both frequency band of operation.