UWB Notch Antennas in MIMO System with High Isolation Performance

This article presents a detailed analysis and design of an ultra-wideband (3.1 GHz – 10.6 GHz) notch antennas in a two-element MIMO system with high isolation performance. The wideband spectrum is notched at the WiMAX band at 5.8 GHz centre frequency using a highly selective electromagnetic bandgap...

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Main Authors: D. Z. Nazif, I. S. Mohamed, A. A. Gaafar, M. Abdalla
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2021-04-01
Series:Radioengineering
Subjects:
Online Access:https://www.radioeng.cz/fulltexts/2021/21_01_0056_0064.pdf
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author D. Z. Nazif
I. S. Mohamed
A. A. Gaafar
M. Abdalla
author_facet D. Z. Nazif
I. S. Mohamed
A. A. Gaafar
M. Abdalla
author_sort D. Z. Nazif
collection DOAJ
description This article presents a detailed analysis and design of an ultra-wideband (3.1 GHz – 10.6 GHz) notch antennas in a two-element MIMO system with high isolation performance. The wideband spectrum is notched at the WiMAX band at 5.8 GHz centre frequency using a highly selective electromagnetic bandgap structure coupled to the antenna feeding lines. An array of electromagnetic bandgap structure is used to achieve wideband isolation between the two elements. The two antenna elements achieve wideband reflection coefficient for good matching below -10 dB, except the notch where it becomes higher than – 2 dB. On the other hand, the antenna elements have a minimum of 20 dB isolation. Thanks to the achieved results, the antenna MIMO elements have small envelop correlation (less than 0.05) and also small channel capacity loss (less than 0.2 bit/s/Hz). The obtained results are verified using experimental measurements and all circuit/ EM needed simulations.
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spelling doaj.art-f489d9b0f46a4c4182bd47d78d0fb0702022-12-21T21:30:52ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122021-04-013015664UWB Notch Antennas in MIMO System with High Isolation PerformanceD. Z. NazifI. S. MohamedA. A. GaafarM. AbdallaThis article presents a detailed analysis and design of an ultra-wideband (3.1 GHz – 10.6 GHz) notch antennas in a two-element MIMO system with high isolation performance. The wideband spectrum is notched at the WiMAX band at 5.8 GHz centre frequency using a highly selective electromagnetic bandgap structure coupled to the antenna feeding lines. An array of electromagnetic bandgap structure is used to achieve wideband isolation between the two elements. The two antenna elements achieve wideband reflection coefficient for good matching below -10 dB, except the notch where it becomes higher than – 2 dB. On the other hand, the antenna elements have a minimum of 20 dB isolation. Thanks to the achieved results, the antenna MIMO elements have small envelop correlation (less than 0.05) and also small channel capacity loss (less than 0.2 bit/s/Hz). The obtained results are verified using experimental measurements and all circuit/ EM needed simulations.https://www.radioeng.cz/fulltexts/2021/21_01_0056_0064.pdfmulti-input-multi-output (mimo)notched-uwb antennaelectromagnetic bandgap (ebg) arrayenvelope correlationdiversity
spellingShingle D. Z. Nazif
I. S. Mohamed
A. A. Gaafar
M. Abdalla
UWB Notch Antennas in MIMO System with High Isolation Performance
Radioengineering
multi-input-multi-output (mimo)
notched-uwb antenna
electromagnetic bandgap (ebg) array
envelope correlation
diversity
title UWB Notch Antennas in MIMO System with High Isolation Performance
title_full UWB Notch Antennas in MIMO System with High Isolation Performance
title_fullStr UWB Notch Antennas in MIMO System with High Isolation Performance
title_full_unstemmed UWB Notch Antennas in MIMO System with High Isolation Performance
title_short UWB Notch Antennas in MIMO System with High Isolation Performance
title_sort uwb notch antennas in mimo system with high isolation performance
topic multi-input-multi-output (mimo)
notched-uwb antenna
electromagnetic bandgap (ebg) array
envelope correlation
diversity
url https://www.radioeng.cz/fulltexts/2021/21_01_0056_0064.pdf
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