Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm
This paper presents the design of a novel fabric-based multi-band microstrip antenna in mm-wave frequencies for wearable applications. The reference patch antenna was etched on a flexible polytetrafluoroethylene (PTFE) fabric substrate with an overall dimension of 18 mm × 18 mm × 0.6 mm and optimize...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2022/1958247 |
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| author | Arebu Dejen Murad Ridwan Jeevani Jayasinghe Jaume Anguera |
| author_facet | Arebu Dejen Murad Ridwan Jeevani Jayasinghe Jaume Anguera |
| author_sort | Arebu Dejen |
| collection | DOAJ |
| description | This paper presents the design of a novel fabric-based multi-band microstrip antenna in mm-wave frequencies for wearable applications. The reference patch antenna was etched on a flexible polytetrafluoroethylene (PTFE) fabric substrate with an overall dimension of 18 mm × 18 mm × 0.6 mm and optimized the patch geometry using a binary-coded genetic algorithm. The algorithm iteratively creates a new shape of the path surface, evaluates the cost function, and returns the best-fitted geometry based on the formulated fitness function. The free space and on-body simulation of the best-fitted antenna performance parameter was investigated and analyzed. In free space, the proposed antenna is resonant at five distinct frequencies: 27.8 GHz, 30.3 GHz, 40.1 GHz, 47.2 GHz, and 56.7 GHz. The antenna achieves a wide bandwidth of 0.69, 2.32, 2.22, 1.76, and 8.11 GHz and an improved broadside directivity of 10.3, 8.5, 7.8, 9.6, and 8.9 dB in free space, respectively. For on-body analysis, the antenna was simulated using a three-layer human body phantom model at three distinct distances. The gain and radiation efficiency were significantly reduced when the antenna was close to the phantom model and gradually enhanced as the gap increased. Moreover, the antenna performances were evaluated and compared by using four additional fabric substrates. Because of its excellent on-body performance with flexible textile-based substrates, the optimized antenna is a suitable candidate for multi-band body-centric communications. |
| format | Article |
| id | doaj-art-a228f1bc2733480ab3ceae55cd4f2b08 |
| institution | Kabale University |
| issn | 1687-5877 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-a228f1bc2733480ab3ceae55cd4f2b082025-02-03T07:24:26ZengWileyInternational Journal of Antennas and Propagation1687-58772022-01-01202210.1155/2022/1958247Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic AlgorithmArebu Dejen0Murad Ridwan1Jeevani Jayasinghe2Jaume Anguera3School of Electrical and Computer EngineeringSchool of Electrical and Computer EngineeringDepartment of ElectronicsTelecommunication EngineeringThis paper presents the design of a novel fabric-based multi-band microstrip antenna in mm-wave frequencies for wearable applications. The reference patch antenna was etched on a flexible polytetrafluoroethylene (PTFE) fabric substrate with an overall dimension of 18 mm × 18 mm × 0.6 mm and optimized the patch geometry using a binary-coded genetic algorithm. The algorithm iteratively creates a new shape of the path surface, evaluates the cost function, and returns the best-fitted geometry based on the formulated fitness function. The free space and on-body simulation of the best-fitted antenna performance parameter was investigated and analyzed. In free space, the proposed antenna is resonant at five distinct frequencies: 27.8 GHz, 30.3 GHz, 40.1 GHz, 47.2 GHz, and 56.7 GHz. The antenna achieves a wide bandwidth of 0.69, 2.32, 2.22, 1.76, and 8.11 GHz and an improved broadside directivity of 10.3, 8.5, 7.8, 9.6, and 8.9 dB in free space, respectively. For on-body analysis, the antenna was simulated using a three-layer human body phantom model at three distinct distances. The gain and radiation efficiency were significantly reduced when the antenna was close to the phantom model and gradually enhanced as the gap increased. Moreover, the antenna performances were evaluated and compared by using four additional fabric substrates. Because of its excellent on-body performance with flexible textile-based substrates, the optimized antenna is a suitable candidate for multi-band body-centric communications.http://dx.doi.org/10.1155/2022/1958247 |
| spellingShingle | Arebu Dejen Murad Ridwan Jeevani Jayasinghe Jaume Anguera Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm International Journal of Antennas and Propagation |
| title | Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm |
| title_full | Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm |
| title_fullStr | Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm |
| title_full_unstemmed | Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm |
| title_short | Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm |
| title_sort | multi band mm wave wearable antenna synthesized with a genetic algorithm |
| url | http://dx.doi.org/10.1155/2022/1958247 |
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