MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications
A MIMO antenna system is designed and presented for sub-6 GHz mobile phone applications. The proposed antenna design consists of six loop-type radiation elements. From the six elements, four elements are placed at the corners of the mobile phone PCB by following pattern diversity configuration, whil...
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9599705/ |
| _version_ | 1818856586663165952 |
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| author | Uzair Ahmad Sadiq Ullah Umair Rafique Dong-You Choi Rizwan Ullah Babar Kamal Ashfaq Ahmad |
| author_facet | Uzair Ahmad Sadiq Ullah Umair Rafique Dong-You Choi Rizwan Ullah Babar Kamal Ashfaq Ahmad |
| author_sort | Uzair Ahmad |
| collection | DOAJ |
| description | A MIMO antenna system is designed and presented for sub-6 GHz mobile phone applications. The proposed antenna design consists of six loop-type radiation elements. From the six elements, four elements are placed at the corners of the mobile phone PCB by following pattern diversity configuration, while the rest of the two elements are placed in the center of the PCB. Furthermore, a <inline-formula> <tex-math notation="LaTeX">$50\Omega $ </tex-math></inline-formula> coaxial connector is utilized to feed the antenna elements. From the presented results, it is demonstrated that the elements placed at the edges are resonating at 2.5 GHz, and the center placed elements provide resonance at 3.5 GHz. Moreover, according to S<sub>11</sub> ≤ −6 dB, the impedance bandwidth for both the bands is 790 MHz (2.3-3.09 GHz) and 1.18 GHz (2.99-4.17 GHz), respectively; while for S<sub>11</sub> ≤ −10 dB, the impedance bandwidth for both the bands is noted to be 340 MHz (2.38-2.72 GHz) and 650 MHz (3.17–3.84 GHz), respectively. A gain of more than 4 dBi and >85% radiation efficiency are achieved for the single radiation element. The presented antenna design also provides sufficient radiation coverage supporting different sides of the mobile phone PCB. In addition, the effects of the human hand and head on antenna’s performance are studied and it was observed that the proposed antenna system provides acceptable properties in the data mode and talk mode. |
| first_indexed | 2024-12-19T08:26:51Z |
| format | Article |
| id | doaj.art-c3590eaa88454570a4e5270b537d340c |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T08:26:51Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-c3590eaa88454570a4e5270b537d340c2022-12-21T20:29:16ZengIEEEIEEE Access2169-35362021-01-01914924014924910.1109/ACCESS.2021.31250979599705MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone ApplicationsUzair Ahmad0Sadiq Ullah1https://orcid.org/0000-0002-5299-1577Umair Rafique2https://orcid.org/0000-0002-6515-7813Dong-You Choi3https://orcid.org/0000-0003-0664-7908Rizwan Ullah4https://orcid.org/0000-0003-4229-0512Babar Kamal5https://orcid.org/0000-0001-5468-4987Ashfaq Ahmad6https://orcid.org/0000-0003-0966-9010Telecommunication Engineering Department, University of Engineering & Technology, Mardan, PakistanTelecommunication Engineering Department, University of Engineering & Technology, Mardan, PakistanDepartment of Information Engineering, Electronics and Telecommunications, Sapienza Universitá di Roma, Rome, ItalyDepartment of Information and Communication Engineering, Communication and Wave Propagation Laboratory, Chosun University, Gwangju, South KoreaTelecommunication Engineering Department, University of Engineering & Technology, Mardan, PakistanCenter of Intelligent Acoustics and Immersive Communications, Northwestern Polytechnical University, Xi’an, ChinaDepartment of Information and Communication Engineering, Communication and Wave Propagation Laboratory, Chosun University, Gwangju, South KoreaA MIMO antenna system is designed and presented for sub-6 GHz mobile phone applications. The proposed antenna design consists of six loop-type radiation elements. From the six elements, four elements are placed at the corners of the mobile phone PCB by following pattern diversity configuration, while the rest of the two elements are placed in the center of the PCB. Furthermore, a <inline-formula> <tex-math notation="LaTeX">$50\Omega $ </tex-math></inline-formula> coaxial connector is utilized to feed the antenna elements. From the presented results, it is demonstrated that the elements placed at the edges are resonating at 2.5 GHz, and the center placed elements provide resonance at 3.5 GHz. Moreover, according to S<sub>11</sub> ≤ −6 dB, the impedance bandwidth for both the bands is 790 MHz (2.3-3.09 GHz) and 1.18 GHz (2.99-4.17 GHz), respectively; while for S<sub>11</sub> ≤ −10 dB, the impedance bandwidth for both the bands is noted to be 340 MHz (2.38-2.72 GHz) and 650 MHz (3.17–3.84 GHz), respectively. A gain of more than 4 dBi and >85% radiation efficiency are achieved for the single radiation element. The presented antenna design also provides sufficient radiation coverage supporting different sides of the mobile phone PCB. In addition, the effects of the human hand and head on antenna’s performance are studied and it was observed that the proposed antenna system provides acceptable properties in the data mode and talk mode.https://ieeexplore.ieee.org/document/9599705/5G technologyloop-type elementsMIMOmobile phonepattern diversity |
| spellingShingle | Uzair Ahmad Sadiq Ullah Umair Rafique Dong-You Choi Rizwan Ullah Babar Kamal Ashfaq Ahmad MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications IEEE Access 5G technology loop-type elements MIMO mobile phone pattern diversity |
| title | MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications |
| title_full | MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications |
| title_fullStr | MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications |
| title_full_unstemmed | MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications |
| title_short | MIMO Antenna System With Pattern Diversity for Sub-6 GHz Mobile Phone Applications |
| title_sort | mimo antenna system with pattern diversity for sub 6 ghz mobile phone applications |
| topic | 5G technology loop-type elements MIMO mobile phone pattern diversity |
| url | https://ieeexplore.ieee.org/document/9599705/ |
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