Triband Millimeter-wave Antenna for 5G Mobile Communications

Millimeter-wave (mmW) range for 5G communication is an innovative field of research that allows communication at ultra-high speed with low latency. Patch antennas due to their compact nature and multiband behavior are of great interest for 5G wireless communication. In this paper, triband H-shaped slotted monopole antenna is designed and its higher-order modes are presented in terms of resonant frequencies. The resultant impedance bandwidth confirms its triband characteristics by covering the frequency bands 27.25–28.04 GHz, 38.93–39.63 GHz and 58.22–61.38 GHz. The proposed antenna efficiently covers the two licensed 28 and 39 GHz bands for 5G device to device and cellular communication and one ISM 60 GHz band for Wi-Gig application. Antenna has maximum radiation efficiency of 82%, 91% and 88%, directivity of 6.94 dBi, 10.2 dBi and 8.82 dBi, and unidirectional radiation characteristics at 28/39/60 GHz, respectively. Henceforth, the proposed antenna finds its suitable application in 5G mobile communication and the results obtained from experiment and simulation are in good agreement. In addition, a lumped element RLC equivalent model of the design is explained and its results are compared with the proposed antenna.