Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications
This research introduces a novel, high-performance multiple-input–multiple-output (MIMO) antenna designed to operate in allocated millimeter-wave (mmWave) 5G wireless communications. Operating in the tri-band, 28, 35, and 38 GHz, the four-port MIMO antenna possesses a compact size—measuring just 50...
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MDPI AG
2025-06-01
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| author | Nabeel Alsaab Mahmoud Shaban |
| author_facet | Nabeel Alsaab Mahmoud Shaban |
| author_sort | Nabeel Alsaab |
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| description | This research introduces a novel, high-performance multiple-input–multiple-output (MIMO) antenna designed to operate in allocated millimeter-wave (mmWave) 5G wireless communications. Operating in the tri-band, 28, 35, and 38 GHz, the four-port MIMO antenna possesses a compact size—measuring just 50 × 50 × 0.787 mm<sup>3</sup> (4.67λ<sub>o</sub> × 4.67λ<sub>o</sub> × 0.73λ<sub>o</sub>). The antenna delivers a remarkable performance, achieving peak gains of 9.6, 7.8, and 13.7 dBi in the tri-band, respectively. The realized bandwidths are 1.1, 2.2, and 3.7 GHz, at the tri-band frequencies. The antenna’s performance was significantly improved by carefully spacing the elements and employing a decoupling technique using metamaterial cells. This minimized interference between the antenna elements, resulting in efficient MIMO operation with a low envelope correlation coefficient of 0.00015 and a high diversity gain approaching 10 dB, and high isolation of 34.5, 22, and 30 dB, in the tri-band. This proposed design is confirmed with experimental measurements and offers a promising candidate for multi-band use of mmWave communication systems. |
| format | Article |
| id | doaj-art-5cac46e146d64d198ba2eff04f619b87 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
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| spelling | doaj-art-5cac46e146d64d198ba2eff04f619b872025-08-20T02:24:35ZengMDPI AGApplied Sciences2076-34172025-06-011512685710.3390/app15126857Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave CommunicationsNabeel Alsaab0Mahmoud Shaban1Department of Electrical Engineering, College of Engineering, Qassim University, Buraydah 52571, Saudi ArabiaDepartment of Electrical Engineering, College of Engineering, Qassim University, Buraydah 52571, Saudi ArabiaThis research introduces a novel, high-performance multiple-input–multiple-output (MIMO) antenna designed to operate in allocated millimeter-wave (mmWave) 5G wireless communications. Operating in the tri-band, 28, 35, and 38 GHz, the four-port MIMO antenna possesses a compact size—measuring just 50 × 50 × 0.787 mm<sup>3</sup> (4.67λ<sub>o</sub> × 4.67λ<sub>o</sub> × 0.73λ<sub>o</sub>). The antenna delivers a remarkable performance, achieving peak gains of 9.6, 7.8, and 13.7 dBi in the tri-band, respectively. The realized bandwidths are 1.1, 2.2, and 3.7 GHz, at the tri-band frequencies. The antenna’s performance was significantly improved by carefully spacing the elements and employing a decoupling technique using metamaterial cells. This minimized interference between the antenna elements, resulting in efficient MIMO operation with a low envelope correlation coefficient of 0.00015 and a high diversity gain approaching 10 dB, and high isolation of 34.5, 22, and 30 dB, in the tri-band. This proposed design is confirmed with experimental measurements and offers a promising candidate for multi-band use of mmWave communication systems.https://www.mdpi.com/2076-3417/15/12/6857multiple-input–multiple-output MIMO systemsmmWave5G communicationsmetamaterialspeak gainisolation |
| spellingShingle | Nabeel Alsaab Mahmoud Shaban Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications Applied Sciences multiple-input–multiple-output MIMO systems mmWave 5G communications metamaterials peak gain isolation |
| title | Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications |
| title_full | Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications |
| title_fullStr | Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications |
| title_full_unstemmed | Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications |
| title_short | Design and Realization of a Multi-Band, High-Gain, and High-Isolation MIMO Antenna for 5G mmWave Communications |
| title_sort | design and realization of a multi band high gain and high isolation mimo antenna for 5g mmwave communications |
| topic | multiple-input–multiple-output MIMO systems mmWave 5G communications metamaterials peak gain isolation |
| url | https://www.mdpi.com/2076-3417/15/12/6857 |
| work_keys_str_mv | AT nabeelalsaab designandrealizationofamultibandhighgainandhighisolationmimoantennafor5gmmwavecommunications AT mahmoudshaban designandrealizationofamultibandhighgainandhighisolationmimoantennafor5gmmwavecommunications |