Inverted-L Shaped Wideband MIMO Antenna for Millimeter-Wave 5G Applications

Amit Patel; Alpesh Vala; Arpan Desai; Issa Elfergani; Hiren Mewada; Keyur Mahant; Chemseddine Zebiri; Dharmendra Chauhan; Jonathan Rodriguez

doi:10.3390/electronics11091387

Inverted-L Shaped Wideband MIMO Antenna for Millimeter-Wave 5G Applications

Amit Patel, Alpesh Vala, Arpan Desai, Issa Elfergani^*, Hiren Mewada, Keyur Mahant, Chemseddine Zebiri, Dharmendra Chauhan, Jonathan Rodriguez

^*Corresponding author for this work

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Abstract

Interconnected three-element and four-element wideband MIMO antennas have been proposed for millimeter-wave 5G applications by performing numerical computations and carrying out experimental measurements. The antenna structure is realized using Rogers 5880 substrate (ε_r = 2.2, tan δ = 0.0009), where the radiating element has the shape of an inverted L with a partial ground. The unit element is carefully designed and positioned (by orthogonally rotating the elements) to form three-element (case 1) and four-element (case 2) MIMO antennas. The interconnected ground for both cases is ascertained to increase the practical utilization of the resonator. The proposed MIMO antenna size is (0.95λ × 3λ) for case 1 and (2.01λ × 1.95λ) for case 2 (at the lowest functional frequency). Both the designs give an impedance bandwidth of approximately 26–40 GHz (43%). Moreover, they achieve greater than 15 dB isolation and more than 6 dBi gain with an ECC value lower than 0.02, which meets the MIMO diversity performance thus making the three-element and four-element MIMO antennas the best choice for millimeter-wave 5G applications.

Original language	English
Article number	1387
Number of pages	16
Journal	Electronics
Volume	11
Issue number	9
DOIs	https://doi.org/10.3390/electronics11091387
Publication status	Published - 26 Apr 2022
Externally published	Yes

Keywords

antenna
connected ground
envelope correlation coefficient (ECC)
inverted L antenna (ILA)
MIMO
mm wave

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Version of Record with a CC BY LicenceFinal published version, 7.92 MBLicence: CC BY

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title = "Inverted-L Shaped Wideband MIMO Antenna for Millimeter-Wave 5G Applications",

abstract = "Interconnected three-element and four-element wideband MIMO antennas have been proposed for millimeter-wave 5G applications by performing numerical computations and carrying out experimental measurements. The antenna structure is realized using Rogers 5880 substrate (εr = 2.2, tan δ = 0.0009), where the radiating element has the shape of an inverted L with a partial ground. The unit element is carefully designed and positioned (by orthogonally rotating the elements) to form three-element (case 1) and four-element (case 2) MIMO antennas. The interconnected ground for both cases is ascertained to increase the practical utilization of the resonator. The proposed MIMO antenna size is (0.95λ × 3λ) for case 1 and (2.01λ × 1.95λ) for case 2 (at the lowest functional frequency). Both the designs give an impedance bandwidth of approximately 26–40 GHz (43%). Moreover, they achieve greater than 15 dB isolation and more than 6 dBi gain with an ECC value lower than 0.02, which meets the MIMO diversity performance thus making the three-element and four-element MIMO antennas the best choice for millimeter-wave 5G applications.",

keywords = "antenna, connected ground, envelope correlation coefficient (ECC), inverted L antenna (ILA), MIMO, mm wave",

author = "Amit Patel and Alpesh Vala and Arpan Desai and Issa Elfergani and Hiren Mewada and Keyur Mahant and Chemseddine Zebiri and Dharmendra Chauhan and Jonathan Rodriguez",

note = "Funding Information: Acknowledgments: This work is supported under the Charotar University of Science and Technology (CHARUSAT) Research Seed Grant scheme. The authors would like to thank CHARUSAT University for providing various resources for the successful completion of the work. Funding Information: Funding: This work is funded by FCT/MCTES through national funds and when applicable co-funded EU funds under the project UIDB/50008/2020-UIDP/50008/2020. Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",

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AU - Patel, Amit

AU - Vala, Alpesh

AU - Desai, Arpan

AU - Elfergani, Issa

AU - Mewada, Hiren

AU - Mahant, Keyur

AU - Zebiri, Chemseddine

AU - Chauhan, Dharmendra

AU - Rodriguez, Jonathan

N1 - Funding Information: Acknowledgments: This work is supported under the Charotar University of Science and Technology (CHARUSAT) Research Seed Grant scheme. The authors would like to thank CHARUSAT University for providing various resources for the successful completion of the work. Funding Information: Funding: This work is funded by FCT/MCTES through national funds and when applicable co-funded EU funds under the project UIDB/50008/2020-UIDP/50008/2020. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2022/4/26

Y1 - 2022/4/26

N2 - Interconnected three-element and four-element wideband MIMO antennas have been proposed for millimeter-wave 5G applications by performing numerical computations and carrying out experimental measurements. The antenna structure is realized using Rogers 5880 substrate (εr = 2.2, tan δ = 0.0009), where the radiating element has the shape of an inverted L with a partial ground. The unit element is carefully designed and positioned (by orthogonally rotating the elements) to form three-element (case 1) and four-element (case 2) MIMO antennas. The interconnected ground for both cases is ascertained to increase the practical utilization of the resonator. The proposed MIMO antenna size is (0.95λ × 3λ) for case 1 and (2.01λ × 1.95λ) for case 2 (at the lowest functional frequency). Both the designs give an impedance bandwidth of approximately 26–40 GHz (43%). Moreover, they achieve greater than 15 dB isolation and more than 6 dBi gain with an ECC value lower than 0.02, which meets the MIMO diversity performance thus making the three-element and four-element MIMO antennas the best choice for millimeter-wave 5G applications.

AB - Interconnected three-element and four-element wideband MIMO antennas have been proposed for millimeter-wave 5G applications by performing numerical computations and carrying out experimental measurements. The antenna structure is realized using Rogers 5880 substrate (εr = 2.2, tan δ = 0.0009), where the radiating element has the shape of an inverted L with a partial ground. The unit element is carefully designed and positioned (by orthogonally rotating the elements) to form three-element (case 1) and four-element (case 2) MIMO antennas. The interconnected ground for both cases is ascertained to increase the practical utilization of the resonator. The proposed MIMO antenna size is (0.95λ × 3λ) for case 1 and (2.01λ × 1.95λ) for case 2 (at the lowest functional frequency). Both the designs give an impedance bandwidth of approximately 26–40 GHz (43%). Moreover, they achieve greater than 15 dB isolation and more than 6 dBi gain with an ECC value lower than 0.02, which meets the MIMO diversity performance thus making the three-element and four-element MIMO antennas the best choice for millimeter-wave 5G applications.

KW - antenna

KW - connected ground

KW - envelope correlation coefficient (ECC)

KW - inverted L antenna (ILA)

KW - MIMO

KW - mm wave

U2 - 10.3390/electronics11091387

DO - 10.3390/electronics11091387

M3 - Article

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VL - 11

JO - Electronics

JF - Electronics

SN - 2079-9292

IS - 9

M1 - 1387

ER -

Inverted-L Shaped Wideband MIMO Antenna for Millimeter-Wave 5G Applications

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Keywords

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