An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications
With the emergence of the Internet of Things (IoT), the demand on the wireless power supply to consumer electronics simultaneously requires much more location freedom, ease of use, and performance with wireless communications. In this paper, an unenclosed quasi-static cavity resonator (QSCR) constru...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/1/13 |
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| author | Qiaoli Zhang Lingao Fan Fangcheng Ren Zhen Yue Deshuang Zhao Shuai Ding Bingzhong Wang |
| author_facet | Qiaoli Zhang Lingao Fan Fangcheng Ren Zhen Yue Deshuang Zhao Shuai Ding Bingzhong Wang |
| author_sort | Qiaoli Zhang |
| collection | DOAJ |
| description | With the emergence of the Internet of Things (IoT), the demand on the wireless power supply to consumer electronics simultaneously requires much more location freedom, ease of use, and performance with wireless communications. In this paper, an unenclosed quasi-static cavity resonator (QSCR) constructed with metallic strips and the design method are proposed and theoretically analyzed. This unenclosed QSCR has a simple structure, which benefits the wireless charging for portable/wearable electronics and smart appliances in the office and home environment. Meanwhile, it can achieve simultaneous ubiquitous 3-dimensional (3-D) wireless power transfer (WPT) inside the cavity and through-wall wireless communications with external electronic devices. Simulation and experimentation are performed to verify the theoretical analysis of the proposed cavity resonator and the WPT system based on it. As demonstrated, at a powering frequency of 6.78 MHz, the unenclosed QSCR can wirelessly transfer power to the receivers with a maximum power transfer efficiency of 90.5%, and an efficiency exceeding 51.5% is obtained at almost any position within the cavity space. The measured through-wall wireless communication channel attenuation introduced by the unenclosed QSCR is below 2.87 dB. By adjusting the inserted lumped capacitor value, the system can work at any desired frequency. |
| format | Article |
| id | doaj-art-19a63d1828ef4fba91357d94d21ef4ea |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-19a63d1828ef4fba91357d94d21ef4ea2025-01-24T13:41:50ZengMDPI AGMicromachines2072-666X2024-12-011611310.3390/mi16010013An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless CommunicationsQiaoli Zhang0Lingao Fan1Fangcheng Ren2Zhen Yue3Deshuang Zhao4Shuai Ding5Bingzhong Wang6School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Physics, University of Electronic Science and Technology of China, Chengdu 611731, ChinaWith the emergence of the Internet of Things (IoT), the demand on the wireless power supply to consumer electronics simultaneously requires much more location freedom, ease of use, and performance with wireless communications. In this paper, an unenclosed quasi-static cavity resonator (QSCR) constructed with metallic strips and the design method are proposed and theoretically analyzed. This unenclosed QSCR has a simple structure, which benefits the wireless charging for portable/wearable electronics and smart appliances in the office and home environment. Meanwhile, it can achieve simultaneous ubiquitous 3-dimensional (3-D) wireless power transfer (WPT) inside the cavity and through-wall wireless communications with external electronic devices. Simulation and experimentation are performed to verify the theoretical analysis of the proposed cavity resonator and the WPT system based on it. As demonstrated, at a powering frequency of 6.78 MHz, the unenclosed QSCR can wirelessly transfer power to the receivers with a maximum power transfer efficiency of 90.5%, and an efficiency exceeding 51.5% is obtained at almost any position within the cavity space. The measured through-wall wireless communication channel attenuation introduced by the unenclosed QSCR is below 2.87 dB. By adjusting the inserted lumped capacitor value, the system can work at any desired frequency.https://www.mdpi.com/2072-666X/16/1/13cavity resonance wireless power transferquasi-static cavity resonator3-Dthrough-wall wireless communications |
| spellingShingle | Qiaoli Zhang Lingao Fan Fangcheng Ren Zhen Yue Deshuang Zhao Shuai Ding Bingzhong Wang An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications Micromachines cavity resonance wireless power transfer quasi-static cavity resonator 3-D through-wall wireless communications |
| title | An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications |
| title_full | An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications |
| title_fullStr | An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications |
| title_full_unstemmed | An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications |
| title_short | An Unenclosed Quasi-Static Cavity Resonator-Based Ubiquitous 3-D Wireless Power Transfer System Supporting Simultaneous Through-Wall Wireless Communications |
| title_sort | unenclosed quasi static cavity resonator based ubiquitous 3 d wireless power transfer system supporting simultaneous through wall wireless communications |
| topic | cavity resonance wireless power transfer quasi-static cavity resonator 3-D through-wall wireless communications |
| url | https://www.mdpi.com/2072-666X/16/1/13 |
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