A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications
This paper presents a compact design for a four-element multiple-input multiple-output (MIMO) antenna for millimeter-wave (mmWave) communications covering the bands of n257/n258/n261. The MIMO design covers the frequency range of 24.25–29.5 GHz, with a wide bandwidth of 5.25 GHz. The element of the...
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MDPI AG
2024-11-01
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| author | Ashutosh Sharma Sanjeev Sharma Vikas Sharma Girish Wadhwa Rajeev Kumar |
| author_facet | Ashutosh Sharma Sanjeev Sharma Vikas Sharma Girish Wadhwa Rajeev Kumar |
| author_sort | Ashutosh Sharma |
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| description | This paper presents a compact design for a four-element multiple-input multiple-output (MIMO) antenna for millimeter-wave (mmWave) communications covering the bands of n257/n258/n261. The MIMO design covers the frequency range of 24.25–29.5 GHz, with a wide bandwidth of 5.25 GHz. The element of the MIMO antenna structure uses a single circular patch with an inset feed, and, in order to improve the reflection coefficient (S<sub>11</sub>), a half-disk parasitic patch is positioned on top of the circular patch. Moreover, to fine-tune the antenna’s characteristics, two vertical stubs on the extreme ends of the ground plane are introduced. For this design, a Rogers RT/Duroid 5880 substrate with ultra-thin thickness is used. After the optimization of the design, the four-port MIMO antenna attained a tiny size, with the dimensions 16.2 mm × 16.2 mm × 0.254 mm. In terms of the MIMO parameters, the ECC (Envelop Correlation coefficient) is less than 0.002 and the DG (Diversity Gain) is greater than 9.99 dB in the mentioned band, which are within the tolerance limits. Also, in spite of the very small size and the four-port configuration, the achieved isolation between the neighboring MIMO elements is less than −23.5 dB. |
| format | Article |
| id | doaj-art-5437cd26066749d4b77b31eb33e4e69f |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-5437cd26066749d4b77b31eb33e4e69f2024-11-26T18:20:54ZengMDPI AGSensors1424-82202024-11-012422715310.3390/s24227153A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things ApplicationsAshutosh Sharma0Sanjeev Sharma1Vikas Sharma2Girish Wadhwa3Rajeev Kumar4Business School, Henan University of Science and Technology, Luoyang 471300, ChinaResearch Department, Rayat Bahra University, Mohali 140104, Punjab, IndiaDepartment of Mechanical Engineering, GLA University, Mathura 281406, Uttar Pradesh, IndiaAmity School of Engineering and Technology, Amity University, Mohali 140306, Punjab, IndiaChitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, Punjab, IndiaThis paper presents a compact design for a four-element multiple-input multiple-output (MIMO) antenna for millimeter-wave (mmWave) communications covering the bands of n257/n258/n261. The MIMO design covers the frequency range of 24.25–29.5 GHz, with a wide bandwidth of 5.25 GHz. The element of the MIMO antenna structure uses a single circular patch with an inset feed, and, in order to improve the reflection coefficient (S<sub>11</sub>), a half-disk parasitic patch is positioned on top of the circular patch. Moreover, to fine-tune the antenna’s characteristics, two vertical stubs on the extreme ends of the ground plane are introduced. For this design, a Rogers RT/Duroid 5880 substrate with ultra-thin thickness is used. After the optimization of the design, the four-port MIMO antenna attained a tiny size, with the dimensions 16.2 mm × 16.2 mm × 0.254 mm. In terms of the MIMO parameters, the ECC (Envelop Correlation coefficient) is less than 0.002 and the DG (Diversity Gain) is greater than 9.99 dB in the mentioned band, which are within the tolerance limits. Also, in spite of the very small size and the four-port configuration, the achieved isolation between the neighboring MIMO elements is less than −23.5 dB.https://www.mdpi.com/1424-8220/24/22/7153n257n258261 bandISM 24 GHzmmWaveinset fed antennas |
| spellingShingle | Ashutosh Sharma Sanjeev Sharma Vikas Sharma Girish Wadhwa Rajeev Kumar A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications Sensors n257 n258 261 band ISM 24 GHz mmWave inset fed antennas |
| title | A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications |
| title_full | A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications |
| title_fullStr | A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications |
| title_full_unstemmed | A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications |
| title_short | A Compact Ultra-Wideband Millimeter-Wave Four-Port Multiple-Input Multiple-Output Antenna for 5G Internet of Things Applications |
| title_sort | compact ultra wideband millimeter wave four port multiple input multiple output antenna for 5g internet of things applications |
| topic | n257 n258 261 band ISM 24 GHz mmWave inset fed antennas |
| url | https://www.mdpi.com/1424-8220/24/22/7153 |
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