Four-Port Dual-Band Multiple-Input Multiple-Output Dielectric Resonator Antenna for Sub-6 GHz 5G Communication Applications

Abstract

A four-port dielectric resonator (DR)-based multiple-input multiple-output (MIMO) antenna is presented for sub-6 GHz MIMO communication. The dielectric resonator was fed through aperture feeding to achieve dual-band resonance. The DRA has the operating modes of and at 3.3 GHz and 3.9 GHz, respectively. The engineered antenna has port isolation of higher than 20 dB at the target frequencies without the employment of an extra isolation mechanism. Full-wave high-frequency simulation software was employed for the simulation computation. The antenna has a peak gain of 5.8 dBi and 6.2 dBi, and an efficiency of 88.6% and 90.2% at 3.3 GHz and 3.9 GHz, respectively. The proposed resonator has good MIMO diversity parameters. The optimal envelope correlation coefficient (ECC) is 0.01, channel capacity loss (CCL) is 0.1 bits/sec/Hz, and the total active reflection coefficient (TARC) is −22.46. The DRA elements are aligned orthogonally with adequate displacement for achieving polarization diversity and spatial diversity. The antenna delivers its applications in Sub-6 GHz 5G and WiMAX communications.

Investigation of Parallel and Orthogonal MIMO Antennas with Two-Notched Structures for Ultra-Wideband Application

“…In general engineering applications, if the ECC is less than 0.5 [ 25 ], it can be considered that the antenna channels can work independently. The calculation of the S-parameter for ECC [ 26 ] is shown in Formula (3): …”

Investigation of Parallel and Orthogonal MIMO Antennas with 2-Notched Structure for UWB Application

“…In general engineering applications, if the ECC is less than 0.5 [25], it can be considered that the antenna channels can work independently. The calculation of the S-parameter for ECC [26] is shown in Formula (3):…”

“…Figure 25 where b represents the reflected signal, a represents the incident signal, N depicts the number of elements in the MIMO system, and S denotes the scattering parameter. Through deriving the formula, the TARC of the MIMO system can be calculated using the S-parameter [26]. The TARC from port 1 to other ports at a random phase of 0° can be calculated using Equation (7).…”

Antennas for Licensed Shared Access in 5G Communications with LTE Mid- and High-Band Coverage

“…The rapidly growing demands of mobile traffic can be supported by fifth-generation (5G) wireless communication systems [ 1 , 2 , 3 , 4 , 5 , 6 ]. An application of cognitive radio technology named licensed shared access (LSA) has been proposed for 5G mobile communication systems to allow the sharing of spectrum among mobile network operators [ 7 , 8 , 9 , 10 ].…”