Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications

This paper describes a singly-fed circularly polarized rectangular dielectric resonator antenna (RDRA) for MIMO and 5G Sub 6 GHz applications. Circular polarization was achieved for both ports using a novel-shaped conformal metal strip. To improve the isolation between the radiators, a “S” shaped de...

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Main Authors: Anwar Ali, Jijun Tong, Javed Iqbal, Usman Illahi, Abdul Rauf, Saeed Ur Rehman, Haider Ali, Muhammad Mansoor Qadir, Muhammad Amir Khan, Rania M. Ghoniem
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/7/1082
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author Anwar Ali
Jijun Tong
Javed Iqbal
Usman Illahi
Abdul Rauf
Saeed Ur Rehman
Haider Ali
Muhammad Mansoor Qadir
Muhammad Amir Khan
Rania M. Ghoniem
author_facet Anwar Ali
Jijun Tong
Javed Iqbal
Usman Illahi
Abdul Rauf
Saeed Ur Rehman
Haider Ali
Muhammad Mansoor Qadir
Muhammad Amir Khan
Rania M. Ghoniem
author_sort Anwar Ali
collection DOAJ
description This paper describes a singly-fed circularly polarized rectangular dielectric resonator antenna (RDRA) for MIMO and 5G Sub 6 GHz applications. Circular polarization was achieved for both ports using a novel-shaped conformal metal strip. To improve the isolation between the radiators, a “S” shaped defective ground plane structure (DGPS) was used. In order to authenticate the estimated findings, a prototype of the suggested radiator was built and tested experimentally. Over the desired band, i.e., 3.57–4.48 GHz, a fractional impedance bandwidth of roughly 36.63 percent (−10 dB as reference) was reached. Parallel axial ratio bandwidth of 28.33 percent is achieved, which is in conjunction with impedance matching bandwidth. Between the ports, isolation of −28 dB is achieved Gain and other far-field parameters are also calculated and found to be within their optimum limits
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spelling doaj.art-04afc72b24354233b9ce8ccfed52db9c2023-12-03T11:57:53ZengMDPI AGMicromachines2072-666X2022-07-01137108210.3390/mi13071082Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G ApplicationsAnwar Ali0Jijun Tong1Javed Iqbal2Usman Illahi3Abdul Rauf4Saeed Ur Rehman5Haider Ali6Muhammad Mansoor Qadir7Muhammad Amir Khan8Rania M. Ghoniem9School of Information Science and Technology, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaSchool of Information Science and Technology, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaSchool of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang 14300, MalaysiaSchool of Electrical and Electronic Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang 14300, MalaysiaDepartment of Electrical Engineering, National University of Sciences and Technology, Islamabad 44000, PakistanElectrical Engineering Department, Attock Campus, Comsats University Islamabad, Abbottabad 22060, PakistanDepartment of Electrical and Electronics Engineering Technology, University of Technology, Nowshera 24100, PakistanDepartment of Computer Science, Iqra National University, Peshawar 25000, PakistanDepartment of Computer Science, Islamabad-Abbottabad Campus, COMSATS University, Abbottabad 22060, PakistanDepartment of Information Technology, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi ArabiaThis paper describes a singly-fed circularly polarized rectangular dielectric resonator antenna (RDRA) for MIMO and 5G Sub 6 GHz applications. Circular polarization was achieved for both ports using a novel-shaped conformal metal strip. To improve the isolation between the radiators, a “S” shaped defective ground plane structure (DGPS) was used. In order to authenticate the estimated findings, a prototype of the suggested radiator was built and tested experimentally. Over the desired band, i.e., 3.57–4.48 GHz, a fractional impedance bandwidth of roughly 36.63 percent (−10 dB as reference) was reached. Parallel axial ratio bandwidth of 28.33 percent is achieved, which is in conjunction with impedance matching bandwidth. Between the ports, isolation of −28 dB is achieved Gain and other far-field parameters are also calculated and found to be within their optimum limitshttps://www.mdpi.com/2072-666X/13/7/1082singly-fedcircular polarizationdielectric resonator antenna (DRA)defected ground structuremultiple-input-multiple-output (MIMO)5G NR band
spellingShingle Anwar Ali
Jijun Tong
Javed Iqbal
Usman Illahi
Abdul Rauf
Saeed Ur Rehman
Haider Ali
Muhammad Mansoor Qadir
Muhammad Amir Khan
Rania M. Ghoniem
Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications
Micromachines
singly-fed
circular polarization
dielectric resonator antenna (DRA)
defected ground structure
multiple-input-multiple-output (MIMO)
5G NR band
title Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications
title_full Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications
title_fullStr Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications
title_full_unstemmed Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications
title_short Mutual Coupling Reduction through Defected Ground Structure in Circularly Polarized, Dielectric Resonator-Based MIMO Antennas for Sub-6 GHz 5G Applications
title_sort mutual coupling reduction through defected ground structure in circularly polarized dielectric resonator based mimo antennas for sub 6 ghz 5g applications
topic singly-fed
circular polarization
dielectric resonator antenna (DRA)
defected ground structure
multiple-input-multiple-output (MIMO)
5G NR band
url https://www.mdpi.com/2072-666X/13/7/1082
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