Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging
A non-uniform antenna array is proposed to enhance the accuracy of medical microwave imaging systems by increasing the amount of useful information captured about the imaged domain without increasing the number of antennas. These systems have so far been using uniform antenna arrays, which lead to h...
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| Format: | Article |
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MDPI AG
2025-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/10/3174 |
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| author | Younis M. Abbosh Kamel Sultan Lei Guo Amin Abbosh |
| author_facet | Younis M. Abbosh Kamel Sultan Lei Guo Amin Abbosh |
| author_sort | Younis M. Abbosh |
| collection | DOAJ |
| description | A non-uniform antenna array is proposed to enhance the accuracy of medical microwave imaging systems by increasing the amount of useful information captured about the imaged domain without increasing the number of antennas. These systems have so far been using uniform antenna arrays, which lead to highly correlated signals, limiting the amount of imaging information and adversely affecting diagnostic accuracy. In the proposed non-uniform antenna array method, the optimal number and positions of antennas are calculated with the aim of enhancing spatial diversity and reducing information redundancy. The mutual information coefficient is used as a metric to evaluate and minimize redundancy between received signals. A microwave head imaging system is used to verify the proposed approach. The results of the investigated scenarios show that using a non-uniform antenna configuration outperforms a uniform setup in imaging accuracy and clarity, when using the same number of antennas. Moreover, the reconstructed images demonstrate that using an optimized non-uniform antenna array with fewer elements can outperform a uniform array with more elements in terms of localization accuracy and image quality. The proposed approach improves imaging performance and reduces system complexity, cost, and power consumption, making it a practical solution for real-world biomedical imaging applications. |
| format | Article |
| id | doaj-art-97c83c3f051a4d3a843bb27d47ef07ca |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-97c83c3f051a4d3a843bb27d47ef07ca2025-08-20T02:34:02ZengMDPI AGSensors1424-82202025-05-012510317410.3390/s25103174Non-Uniform Antenna Array for Enhanced Medical Microwave ImagingYounis M. Abbosh0Kamel Sultan1Lei Guo2Amin Abbosh3College of Electronics Engineering, Ninevah University, Mosul 41002, IraqSchool of EECS, The University of Queensland, St. Lucia, QLD 4072, AustraliaSchool of EECS, The University of Queensland, St. Lucia, QLD 4072, AustraliaSchool of EECS, The University of Queensland, St. Lucia, QLD 4072, AustraliaA non-uniform antenna array is proposed to enhance the accuracy of medical microwave imaging systems by increasing the amount of useful information captured about the imaged domain without increasing the number of antennas. These systems have so far been using uniform antenna arrays, which lead to highly correlated signals, limiting the amount of imaging information and adversely affecting diagnostic accuracy. In the proposed non-uniform antenna array method, the optimal number and positions of antennas are calculated with the aim of enhancing spatial diversity and reducing information redundancy. The mutual information coefficient is used as a metric to evaluate and minimize redundancy between received signals. A microwave head imaging system is used to verify the proposed approach. The results of the investigated scenarios show that using a non-uniform antenna configuration outperforms a uniform setup in imaging accuracy and clarity, when using the same number of antennas. Moreover, the reconstructed images demonstrate that using an optimized non-uniform antenna array with fewer elements can outperform a uniform array with more elements in terms of localization accuracy and image quality. The proposed approach improves imaging performance and reduces system complexity, cost, and power consumption, making it a practical solution for real-world biomedical imaging applications.https://www.mdpi.com/1424-8220/25/10/3174medical microwave imagingelectromagnetic imagingnon-uniform antenna arrayconfocal imaging |
| spellingShingle | Younis M. Abbosh Kamel Sultan Lei Guo Amin Abbosh Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging Sensors medical microwave imaging electromagnetic imaging non-uniform antenna array confocal imaging |
| title | Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging |
| title_full | Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging |
| title_fullStr | Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging |
| title_full_unstemmed | Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging |
| title_short | Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging |
| title_sort | non uniform antenna array for enhanced medical microwave imaging |
| topic | medical microwave imaging electromagnetic imaging non-uniform antenna array confocal imaging |
| url | https://www.mdpi.com/1424-8220/25/10/3174 |
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