Design and Characterization of a Simple and Wideband Antenna for 5G mm-wave Applications

An 8.5 GHz wideband and high Gain cross elliptical shape antenna is presented in this paper for the 5G mm-wave applications. A short-pin opposite to the feeding arm is deployed for the maximum current flow and consequently high bandwidth ranging from 26.7 to 35.2 GHz is achieved. The gain of the antenna varies from 6.1 dBi to 8.47 dBi in the entire frequency range with more than 76% efficiency. The compact electrical size of the antenna is 0.89λ0 × 0.89λ × 0.14λ0, where λ0 corresponds to the free space wavelength at the lowest resonance frequency. The results are compared with the state-of-the-artwork for the 5G mm-wave applications.