11. Survey on Dielectric Resonator and Substrate Integrated Waveguide-Based 5G MIMO Antenna with Different Mutual Coupling Reduction Techniques

Tremendous growth in the field of mobile communication and wireless communication enforces antenna engineers to meet the current technological advancement. It is sure that the implementation of unlicensed 5G spectrum at 60 GHz will be a compulsion at the end of 2020.As the mobile and communication users are increasing very fast to avail the facility of a communication network, requirement of high spectral efficiency and ultra-high data rate must be the motivated area of research. So multiple input multiple output (MIMO) antenna can be a suggestive approach at 60 GHz spectrum.Mutual coupling between the ports of the MIMO antenna is again another challenge which affects the radiation pattern of the antenna. So care must be taken to reduce the mutual coupling between the elements of the antenna.Use of 60 GHz frequency forces the antenna engineers for the use of dielectric resonator antenna instead of microstrip patch antenna.Substrate integrated waveguide (SIW) feed antenna provides high gain and high bandwidth compared to the other antenna.This paper gives systematical studies of SIW antenna, dielectric resonator antenna, 5G MIMO antenna with all the isolation improvement techniques to meet the current requirement.