Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics
In this study, we introduce a cost-effective antenna designed for ultrawideband (UWB) spectrum. The antenna employs a single-layer coplanar waveguide (CPW) feed on a 1.6 mm FR4 board. Notably, the antenna demonstrates a bandwidth from 3.7 to 15.7 GHz (12 GHz) for a single element. Expanding its util...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/ijap/6627413 |
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| author | Ijaz Ahmad Yuhuai Liu Fang Wang Salahuddin Khan Parveez Sharif B. G. Tanweer Ali Mian Muhammad Kamal Mariana Dalarson |
| author_facet | Ijaz Ahmad Yuhuai Liu Fang Wang Salahuddin Khan Parveez Sharif B. G. Tanweer Ali Mian Muhammad Kamal Mariana Dalarson |
| author_sort | Ijaz Ahmad |
| collection | DOAJ |
| description | In this study, we introduce a cost-effective antenna designed for ultrawideband (UWB) spectrum. The antenna employs a single-layer coplanar waveguide (CPW) feed on a 1.6 mm FR4 board. Notably, the antenna demonstrates a bandwidth from 3.7 to 15.7 GHz (12 GHz) for a single element. Expanding its utility, a four-element Multiple Input Multiple Output (MIMO) assembly is arranged orthogonally, aiming to achieve diversity characteristics. The MIMO elements are connected through a common ground plane. In the MIMO configuration, the bandwidth response is increased to 2.9–16.2 GHz. To mitigate mutual coupling between the antenna elements, a simple geometric parasitic element is inserted between them, resulting in a significant improvement of 15 dB in isolation. In addition, a maximum gain of 5.5 dBi is noted at 14 GHz with total efficiency exceeding 80% throughout the resonance bandwidth. The individual antenna element boasts a compact footprint of 20 × 26 mm2, while the MIMO configuration occupies an area of 46 × 48 mm2. Furthermore, we conduct a thorough analysis of various MIMO performance metrics, including the envelope correlation coefficient (ECC), mean effective gain (MEG), and diversity gain (DG), all of which fall within acceptable thresholds. These analyses validate the potential of our proposed UWB–MIMO antenna for diverse UWB applications. |
| format | Article |
| id | doaj-art-dde5b6e7bc5f44cc938551ace2ba32d7 |
| institution | DOAJ |
| issn | 1687-5877 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-dde5b6e7bc5f44cc938551ace2ba32d72025-08-20T03:13:35ZengWileyInternational Journal of Antennas and Propagation1687-58772025-01-01202510.1155/ijap/6627413Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity CharacteristicsIjaz Ahmad0Yuhuai Liu1Fang Wang2Salahuddin Khan3Parveez Sharif B. G.4Tanweer Ali5Mian Muhammad Kamal6Mariana Dalarson7National Center for International Joint Research of Electronic Materials and SystemsNational Center for International Joint Research of Electronic Materials and SystemsNational Center for International Joint Research of Electronic Materials and SystemsCollege of EngineeringDepartment of Electronics and Communication EngineeringDepartment of Electronics and Communication EngineeringSchool of Electronic Science and EngineeringSchool of Electrical Engineering and Computer ScienceIn this study, we introduce a cost-effective antenna designed for ultrawideband (UWB) spectrum. The antenna employs a single-layer coplanar waveguide (CPW) feed on a 1.6 mm FR4 board. Notably, the antenna demonstrates a bandwidth from 3.7 to 15.7 GHz (12 GHz) for a single element. Expanding its utility, a four-element Multiple Input Multiple Output (MIMO) assembly is arranged orthogonally, aiming to achieve diversity characteristics. The MIMO elements are connected through a common ground plane. In the MIMO configuration, the bandwidth response is increased to 2.9–16.2 GHz. To mitigate mutual coupling between the antenna elements, a simple geometric parasitic element is inserted between them, resulting in a significant improvement of 15 dB in isolation. In addition, a maximum gain of 5.5 dBi is noted at 14 GHz with total efficiency exceeding 80% throughout the resonance bandwidth. The individual antenna element boasts a compact footprint of 20 × 26 mm2, while the MIMO configuration occupies an area of 46 × 48 mm2. Furthermore, we conduct a thorough analysis of various MIMO performance metrics, including the envelope correlation coefficient (ECC), mean effective gain (MEG), and diversity gain (DG), all of which fall within acceptable thresholds. These analyses validate the potential of our proposed UWB–MIMO antenna for diverse UWB applications.http://dx.doi.org/10.1155/ijap/6627413 |
| spellingShingle | Ijaz Ahmad Yuhuai Liu Fang Wang Salahuddin Khan Parveez Sharif B. G. Tanweer Ali Mian Muhammad Kamal Mariana Dalarson Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics International Journal of Antennas and Propagation |
| title | Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics |
| title_full | Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics |
| title_fullStr | Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics |
| title_full_unstemmed | Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics |
| title_short | Four-Element UWB MIMO Antenna System With a Square Frame Decoupling Structure for Enhanced Isolation and Polarization Diversity Characteristics |
| title_sort | four element uwb mimo antenna system with a square frame decoupling structure for enhanced isolation and polarization diversity characteristics |
| url | http://dx.doi.org/10.1155/ijap/6627413 |
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