A Novel 3D Miniaturized, Wideband, Dual-Polarized Antenna with High Isolation, Low Cross Polarization for Advanced LTE/5G Base Station Application

In this literature, a small profile wide band, dual polarized antenna element for Advanced LTE/5G base station for MIMO application is presented. The design consists of a Pair of orthogonal planar bow tie dipoles is fed with a two semi ridge cables and a reflector ground plane with air dielectric are used to obtain the two linear polarizations. The designed antenna is operating in the frequency band of LTE2400 and sub 6GHz (3.3-4.0GHz) band for 5G. A single antenna works for both Advance LTE/5G for MIMO applications. From the simulation results the single antenna element with notch on the dipole arms yields an $\vert S11\vert$ less than-15dB bandwidth of 66.66% (2-4 GHz), HPBW of 71.5 degrees and a gain of 7.5 to 9.3dBi, Front to Back Ratio(FBR) is better than 18.5dB, with Isolation of 35dB,Cross Polarization Level of 38dB with symmetrical radiation pattern. The overall height of the antenna is 34mm with radome and the design is simple and easy to fabricate. Thus, this new design is an ideal candidate for the new 5G Mobile Base Applications.