High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications
A broadband multiple-input multiple-output (MIMO) antenna with high isolation operating in 3.14–5.42 GHz (2.28 GHz, 53.3%) is proposed for 5G smartphones. An offset T-shaped slot with dual functions is employed to improve the bandwidth of one antenna element and enhance the isolation. Then, the doub...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.986558/full |
| _version_ | 1811284102360334336 |
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| author | Shuyi Chen Na Lu Jiaxing Sun Changfei Zhou Changxian Li Di Wu |
| author_facet | Shuyi Chen Na Lu Jiaxing Sun Changfei Zhou Changxian Li Di Wu |
| author_sort | Shuyi Chen |
| collection | DOAJ |
| description | A broadband multiple-input multiple-output (MIMO) antenna with high isolation operating in 3.14–5.42 GHz (2.28 GHz, 53.3%) is proposed for 5G smartphones. An offset T-shaped slot with dual functions is employed to improve the bandwidth of one antenna element and enhance the isolation. Then, the double L-shaped stubs are loaded to improve the impedance matching of the other antenna in the MIMO antenna. Finally, the 2 × 2 MIMO antenna is constructed by four T-shaped monopole antennas, two double L-shaped stubs, and two offset T-shaped slots. The proposed MIMO antenna is first simulated and then experimentally tested with a good agreement. High isolation of greater than 15 dB, high antenna efficiency of more than 54%, and low envelope correlation coefficient (ECC) of smaller than 0.08 are realized within 3.14–5.42 GHz. These good performances indicate that the proposed antenna can be applied for MIMO applications in smartphones. |
| first_indexed | 2024-04-13T02:24:30Z |
| format | Article |
| id | doaj.art-14e394e832c94045ad91521d5f2db5d6 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-13T02:24:30Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-14e394e832c94045ad91521d5f2db5d62022-12-22T03:06:50ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-08-011010.3389/fphy.2022.986558986558High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applicationsShuyi Chen0Na Lu1Jiaxing Sun2Changfei Zhou3Changxian Li4Di Wu5Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, ChinaFaculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, ChinaFaculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, ChinaFaculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, ChinaNational and Local Joint Engineering Research Center for Rail Transit Equipment, Dalian Jiaotong University, Dalian, ChinaCollege of Electronics and Information Engineering, Shenzhen University, Shenzhen, ChinaA broadband multiple-input multiple-output (MIMO) antenna with high isolation operating in 3.14–5.42 GHz (2.28 GHz, 53.3%) is proposed for 5G smartphones. An offset T-shaped slot with dual functions is employed to improve the bandwidth of one antenna element and enhance the isolation. Then, the double L-shaped stubs are loaded to improve the impedance matching of the other antenna in the MIMO antenna. Finally, the 2 × 2 MIMO antenna is constructed by four T-shaped monopole antennas, two double L-shaped stubs, and two offset T-shaped slots. The proposed MIMO antenna is first simulated and then experimentally tested with a good agreement. High isolation of greater than 15 dB, high antenna efficiency of more than 54%, and low envelope correlation coefficient (ECC) of smaller than 0.08 are realized within 3.14–5.42 GHz. These good performances indicate that the proposed antenna can be applied for MIMO applications in smartphones.https://www.frontiersin.org/articles/10.3389/fphy.2022.986558/fullwidebandMIMOoffset T-shaped slotdecouplehigh isolation |
| spellingShingle | Shuyi Chen Na Lu Jiaxing Sun Changfei Zhou Changxian Li Di Wu High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications Frontiers in Physics wideband MIMO offset T-shaped slot decouple high isolation |
| title | High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications |
| title_full | High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications |
| title_fullStr | High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications |
| title_full_unstemmed | High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications |
| title_short | High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications |
| title_sort | high isolation wideband mimo antenna with offset t shaped slots for 5g wlan applications |
| topic | wideband MIMO offset T-shaped slot decouple high isolation |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.986558/full |
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