A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer
A novel wearable button antenna sensor is proposed for the concept of simultaneous wireless information and power transfer (SWIPT). This integrates two working modes for the transfer of power and information, respectively, and optimizes transfer efficiency. An omni-directional radiation pattern is a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/17/5678 |
| _version_ | 1797520876805029888 |
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| author | Jiahao Zhang Jin Meng Wei Li Sen Yan Guy A. E. Vandenbosch |
| author_facet | Jiahao Zhang Jin Meng Wei Li Sen Yan Guy A. E. Vandenbosch |
| author_sort | Jiahao Zhang |
| collection | DOAJ |
| description | A novel wearable button antenna sensor is proposed for the concept of simultaneous wireless information and power transfer (SWIPT). This integrates two working modes for the transfer of power and information, respectively, and optimizes transfer efficiency. An omni-directional radiation pattern is achieved in the 3.5 GHz World Interoperability for Microwave Access (WiMAX) band to support on-body wireless communications, while a circularly polarized broadside radiation pattern is obtained in the 5 GHz wireless local area networks (WLAN) band to harvest power. The measured −10 dB return loss bandwidths are 4.0% (3.47–3.61 GHz) in the lower band, and 25.0% (4.51–5.80 GHz) in the higher band, respectively. An artificial magnetic conductor (AMC) structure with wideband characteristics is applied to obtain a low-profile design and to increase the stability of the antenna sensor. A high radiation efficiency of over 80% in the whole working band is observed. The specific absorption rate (SAR) of the proposed antenna sensor is below 0.509 W/kg at 3.55 GHz, and below 0.0532 W/kg at 5.5 GHz, respectively, which is much lower than the European standard threshold of 2 W/kg. All these characteristics make the designed antenna sensor suitable for on-body information transmission and off-body energy harvesting. The antenna sensor has been prototyped. Simulations and measurements agree well, proving the validity of the new concept. |
| first_indexed | 2024-03-10T08:04:49Z |
| format | Article |
| id | doaj.art-4e9f50183a21487a8a264379dad5ef74 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T08:04:49Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4e9f50183a21487a8a264379dad5ef742023-11-22T11:10:43ZengMDPI AGSensors1424-82202021-08-012117567810.3390/s21175678A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power TransferJiahao Zhang0Jin Meng1Wei Li2Sen Yan3Guy A. E. Vandenbosch4National Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaNational Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan 430033, ChinaSchool of Information and Communications Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaWAVECORE Research Division, Department of Electrical Engineering, KU Leuven, 3001 Leuven, BelgiumA novel wearable button antenna sensor is proposed for the concept of simultaneous wireless information and power transfer (SWIPT). This integrates two working modes for the transfer of power and information, respectively, and optimizes transfer efficiency. An omni-directional radiation pattern is achieved in the 3.5 GHz World Interoperability for Microwave Access (WiMAX) band to support on-body wireless communications, while a circularly polarized broadside radiation pattern is obtained in the 5 GHz wireless local area networks (WLAN) band to harvest power. The measured −10 dB return loss bandwidths are 4.0% (3.47–3.61 GHz) in the lower band, and 25.0% (4.51–5.80 GHz) in the higher band, respectively. An artificial magnetic conductor (AMC) structure with wideband characteristics is applied to obtain a low-profile design and to increase the stability of the antenna sensor. A high radiation efficiency of over 80% in the whole working band is observed. The specific absorption rate (SAR) of the proposed antenna sensor is below 0.509 W/kg at 3.55 GHz, and below 0.0532 W/kg at 5.5 GHz, respectively, which is much lower than the European standard threshold of 2 W/kg. All these characteristics make the designed antenna sensor suitable for on-body information transmission and off-body energy harvesting. The antenna sensor has been prototyped. Simulations and measurements agree well, proving the validity of the new concept.https://www.mdpi.com/1424-8220/21/17/5678wearable sensorsbutton antennaswireless power transferdual-band antennacircularly polarized antennaartificial magnetic conductor |
| spellingShingle | Jiahao Zhang Jin Meng Wei Li Sen Yan Guy A. E. Vandenbosch A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer Sensors wearable sensors button antennas wireless power transfer dual-band antenna circularly polarized antenna artificial magnetic conductor |
| title | A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer |
| title_full | A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer |
| title_fullStr | A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer |
| title_full_unstemmed | A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer |
| title_short | A Wearable Button Antenna Sensor for Dual-Mode Wireless Information and Power Transfer |
| title_sort | wearable button antenna sensor for dual mode wireless information and power transfer |
| topic | wearable sensors button antennas wireless power transfer dual-band antenna circularly polarized antenna artificial magnetic conductor |
| url | https://www.mdpi.com/1424-8220/21/17/5678 |
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