Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications

A compact, low profile, multiple-input–multiple-output (MIMO) diversity antenna with super-wideband (SWB) characteristics has been proposed. The proposed antenna comprises four symmetric monopole-radiating elements printed on low-cost FR4 substrate with the slotted ground plane. The single antenna o...

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Main Authors: Adnan Khurshid, Jian Dong, Mir Swad Ahmad, Ronghua Shi
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/4/514
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author Adnan Khurshid
Jian Dong
Mir Swad Ahmad
Ronghua Shi
author_facet Adnan Khurshid
Jian Dong
Mir Swad Ahmad
Ronghua Shi
author_sort Adnan Khurshid
collection DOAJ
description A compact, low profile, multiple-input–multiple-output (MIMO) diversity antenna with super-wideband (SWB) characteristics has been proposed. The proposed antenna comprises four symmetric monopole-radiating elements printed on low-cost FR4 substrate with the slotted ground plane. The single antenna of a monopole structure and a quad-port MIMO antenna, with the dimensions of 30 × 20 mm<sup>2</sup> and 60 × 55 mm<sup>2</sup>, respectively, are ideal for IoT and high-speed data applications. The proposed MIMO antenna has a high diversity gain and low envelope correlation coefficient (ECC) within the frequency range. Simulated results demonstrate the performance of the MIMO-SWB antenna, which operates from 2.3 to 23 GHz, with a high isolation level over 20 dB in the achieved frequency band. Moreover, the proposed MIMO antenna has been investigated with mirror fashion and orthogonal structure. Both structures provide similar results except for mutual coupling performance. The orthogonal adjustment for high isolation achieves better results with the proposed model. Further, the prototype of the proposed antenna is fabricated and measured effectively. Simulated and measured results show good agreement for super-wideband applications.
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spelling doaj.art-7d8298b146c44ba18db6bfff93fe369f2023-12-01T21:14:25ZengMDPI AGMicromachines2072-666X2022-03-0113451410.3390/mi13040514Optimized Super-Wideband MIMO Antenna with High Isolation for IoT ApplicationsAdnan Khurshid0Jian Dong1Mir Swad Ahmad2Ronghua Shi3School of Computer Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Computer Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Computer Science and Engineering, Central South University, Changsha 410083, ChinaSchool of Computer Science and Engineering, Central South University, Changsha 410083, ChinaA compact, low profile, multiple-input–multiple-output (MIMO) diversity antenna with super-wideband (SWB) characteristics has been proposed. The proposed antenna comprises four symmetric monopole-radiating elements printed on low-cost FR4 substrate with the slotted ground plane. The single antenna of a monopole structure and a quad-port MIMO antenna, with the dimensions of 30 × 20 mm<sup>2</sup> and 60 × 55 mm<sup>2</sup>, respectively, are ideal for IoT and high-speed data applications. The proposed MIMO antenna has a high diversity gain and low envelope correlation coefficient (ECC) within the frequency range. Simulated results demonstrate the performance of the MIMO-SWB antenna, which operates from 2.3 to 23 GHz, with a high isolation level over 20 dB in the achieved frequency band. Moreover, the proposed MIMO antenna has been investigated with mirror fashion and orthogonal structure. Both structures provide similar results except for mutual coupling performance. The orthogonal adjustment for high isolation achieves better results with the proposed model. Further, the prototype of the proposed antenna is fabricated and measured effectively. Simulated and measured results show good agreement for super-wideband applications.https://www.mdpi.com/2072-666X/13/4/514MIMO (multiple-input–multiple-output)wireless communicationSWB (super-wide-band)envelope correlation coefficientdiversityisolation
spellingShingle Adnan Khurshid
Jian Dong
Mir Swad Ahmad
Ronghua Shi
Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
Micromachines
MIMO (multiple-input–multiple-output)
wireless communication
SWB (super-wide-band)
envelope correlation coefficient
diversity
isolation
title Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
title_full Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
title_fullStr Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
title_full_unstemmed Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
title_short Optimized Super-Wideband MIMO Antenna with High Isolation for IoT Applications
title_sort optimized super wideband mimo antenna with high isolation for iot applications
topic MIMO (multiple-input–multiple-output)
wireless communication
SWB (super-wide-band)
envelope correlation coefficient
diversity
isolation
url https://www.mdpi.com/2072-666X/13/4/514
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