Low Mutual Coupling Dualband MIMO Microstrip Antenna with Air Gap Parasitic

This article presented a millimeter wave antenna which operated at 38 GHz for 5G mobile base station. The MIMO (Multiple Input Multiple Output) antenna consisted of 1x10 linear array configurations. The proposed antenna’s size was 88 x 98 mm^2 and printed on 1.575 mm-thick Rogers Duroid 5880 subsrate with dielectric constant of ε_r= 2.2 and loss tangent (tanδ) of 0.0009. The antenna array covered along the azimuth plane to provide the coverage to the users in omnidirection. The simulated results showed that the single element antenna had the reflection coefficient (S11) of -59 dB, less than -10 dB in the frequency range of 35.5 - 39.6 GHz. More than 4.1 GHz of impedance bandwidth was obtained. The gain of the antenna linear array was 17.8 dBi while the suppression of the side lobes was -2.7 dB. It showed a high array gain throughout the impedance bandwidth with overall of VSWR were below 1.0646. It designed using CST microwave studio.

Section: Introductionmentioning

confidence: 99%

High gain 5G MIMO antenna for mobile base station

Rahayu¹,

Sari²,

Ramadhan³

et al. 2019

“…It was widely discussed in different research papers [2][3][4][5][6] that the multiple frequency bands can be obtained by using shaped antennas. Microstrip antenna is presently designed by the researchers [7][8][9][10][11] to fit in the broadband applications. However there gain is reduced with the enlargement of bandwidth.…”

Section: Introductionmentioning

confidence: 99%

A Miniature BroadBand Microstrip Antenna for LTE, Wi-Fi and WiMAX Applications

Er-reguig

Ammor

2018

A Compact microstrip antenna with rectangular slotted radiating element has been developed. Four slots have been introduced on the radiating element with the use of a partial ground plane and a wideband response has been obtained. The bandwidth of the proposed antenna is 1.7 GHz with a percentage bandwidth of 71%. A low-cost dielectric (FR4_EPOXY) has been considered in the development of the proposed antenna. The obtained frequency band is from 1.9 GHz to 3.6 GHz. To investigate the robustness of our modelled antenna the simulation process has been carried out using two different solvers (Finite Element Method and Finite Integration Technique). In addition, the designed antenna was realized and these results were compared with those of the simulation. The proposed antenna is suitable for many LTE bands {1, 3, 7… 38, 40} broadly deployed in European, South American, Asian, and African countries, Wi-Fi (2.4 GHz), and WiMAX technology (3.5 GHz).

“…Another MIMO antenna design was proposed in [24] for four-element Dual-band output which had four bowtie dipole antenna, that design had four types of ground plane patterns which are full, cornered spatial, crossed middle, and spiral. A low mutual coupling dual-band MIMO microstrip 2X2 antenna with parasitic air gap to reduce the mutual coupling was proposed in [25]. These MIMO antenna designs which were proposed for multiple frequency operations had complicated structures and they did not have a very low mutual coupling compared to the return losses for their corresponding MIMO antenna elements.…”

Section: Introductionmentioning

confidence: 99%

Hexa-band MIMO CPW Bow-tie Aperture Antenna Using Particle Swarm Optimization

Hamid

Obaid

2018

<span>A MIMO hexa-band Bowtie Antenna for Wi-Fi is proposed. The MIMO antenna can operate at six frequency bands: 2.4, 4.4, 6.1, 8.5, 10.25 and 12.8 GHz. The MIMO antenna consists of four loaded bowtie hexa-band antennas having the same structure. Each single antenna element is loaded with six metallic strips as well as interconnected parasitic rectangular components. The presented HFSS simulations will show that the MIMO loaded antenna can operate at six frequency bands including 2.4 GHz by obtaining the return loss results, radiation patterns, and other antenna parameters. It will be shown also that the MIMO bowtie antenna has a very low mutual coupling at all the operating frequencies for the specific loaded metallic strips width which was obtained using Particle Swarm Optimization technique.</span>