Enhanced Radial Line Slot Array Antenna (RLSA) integrated with Circular Ring Resonator (CRR) for 5G mm-wave applications

This paper proposed a radial line slot array antenna (RSLA) design integrated with circular ring resonator for 5G millimeter-wave applications. It is intended to converge the Federal Communications Commission (FCC) standards that specify the millimeter-wave operating bands from (24-40) GHz. It intends to create a wideband compacted RLSA antenna. The benefit of this design technique is the high achievable gain, which is desirable for mm-wave bands due to their short wavelength. The proposed RLSA antenna with metamaterial of is designed for 28GHz resonance frequency and uses Rogers 5880 substrate material with a thickness of 1.57 mm. The air gap cavity between the copper plate and the substrate is g/2 which is equivalent to 2mm. The RLSA antenna with CRR metamaterial reflector operates between (25-38) GHz and it achieved peak realized gain of 20 dBi. This work is reducing the designed antenna size and making it suitable small device for 5G mm-wave band.