Six‐element dual polarized high‐gain MIMO antenna for multiband applications

Abstract

A planar six‐elements, dual‐polarized, high‐gain, multiband antenna for diverse application is proposed in this manuscript. The proposed design consists of six radiating elements and a parasitic element on the top side of the structure. Each radiating element consists of overlapped ellipse with a line feeding technique. Iterations have been carried out on the number of antenna elements as well as on the spacing between the elements to get a minimum coupling between antenna elements. To compensate the coupling effect as well as to increase the impedance bandwidth, a ground plane structure has been modified with “L” shape structures. Fabricated prototype has an isolation less than −2 dB with highest gain of 6.7 dBi. Diversity in polarization is achieved by orienting antenna elements in vertical as well as in horizontal directions. A simple and compact design of antenna with good gain and less correlation coefficient makes an antenna useful for multiple input multiple output (MIMO) applications in the wireless communication systems. Simulation and measurement results validates the use of proposed structure in various applications like ISM, WLAN, Wi‐Fi, short range radar, and satellite applications.

Isolation Improvement Using Asymmetric Radiators and Ground Plane Diversity Mechanism in a Six-Element Uwb Mimo Antenna Design

“…where F i (θ, Φ) is the farfield pattern of the ith antenna. The diversity gain (DG) of the studied MIMO antenna is related to the calculated ECC value as shown in Equation (2) [15]. Figure 15 displays the investigated MIMO antenna diversity gain.…”

Design and Performance Analysis of a Compact Planar MIMO Antenna for IoT Applications

“…In recent years, a few multiple-input-multiple-output (MIMO) antenna structures for IoT applications have also been reported [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ]. A triple-band MIMO antenna with a complementary split-ring resonator was presented in [ 23 ].…”

“…A triple-band MIMO antenna with a complementary split-ring resonator was presented in [ 23 ]. A planar multi-band MIMO antenna in [ 24 ], a two-port dielectric resonator antenna structure in [ 25 ], a meander line radiator loaded with a split ring resonator in [ 26 ], an ellipse-shaped multi-band MIMO antenna in [ 27 ], an eight-port meandered line structure in [ 28 ], a four-port MIMO antenna for 5G applications in [ 29 ], a four-port L-shaped planar inverted-F antenna in [ 30 ], a two-port dielectric resonator antenna for LTE applications in [ 31 ], a CPW-fed sickle-shaped resonator for IoT application in [ 32 ], a meander line monopole antenna for multiband applications in [ 33 ], a monopole antenna with vias for IoT applications in [ 34 ], a CPW-fed rectangular patch radiator in [ 35 ], and a combination of simple monopole radiators for IoT/WLAN/sub-6 GHz/X-band applications in [ 36 ]. However, the majority of the above-reported MIMO antenna designs were large in size and difficult to integrate on the printed circuit board of the IoT module.…”

Performance analysis of negative group delay network using MIMO technique

“…It can be as well efficiently organized in correlation matrix-based on antenna selections. Multi band antennas for wireless systems have been presented in [11][12][13][14][15][16][17][18]. These devices are very important to operate in separated strategic bands for front ends of wireless systems especially for MIMO configurations.…”