28 GHz one-sided directional slot array antenna for 5G application

Abstract

This paper presents a design of one-sided directional slot array antenna for 28 GHz-band 5G application. The antenna element is composed of top metal, dielectric substrate, and bottom metal layer. The antenna has $1\times 2$ sub array, combined with 2 antenna elements into 1 sub array. The Extremely high frequency (EHF) signal is fed by CPW transmission line. From the simulation and measurement result of return loss, antenna gain is presented in this paper. The gain of proposed antenna is 7 dBi at $1\times 2$ antenna.