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2019 IEEE Wireless Power Transfer Conference (WPTC)最新文献

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Theoretical Analysis of Single Shunt Rectifiers 单并联整流器的理论分析
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055534
Takashi Hirakawa, N. Shinohara
{"title":"Theoretical Analysis of Single Shunt Rectifiers","authors":"Takashi Hirakawa, N. Shinohara","doi":"10.1109/WPTC45513.2019.9055534","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055534","url":null,"abstract":"RF-DC conversion circuits are used in Microwave wireless power transfer (MWPT). Improving RF-DC conversion efficiency is necessity for practical use of MWPT. We are studying single-shunt rectifiers for microwaves. Theoretical RF-DC conversion efficiency depending on the load impedance has not been clarified yet. This research revealed a theoretical solution of an ideal single shunt rectifier. Our solution was compared with the simulation result and completely matched.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130670587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mixed-Time Scale Based Adaptive Mode Switching for Dual Mode SWIPT 基于混合时间尺度的双模式SWIPT自适应模式切换
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055621
Jong Jin Park, J. Moon, Kangyoon Lee, Dong In Kim
{"title":"Mixed-Time Scale Based Adaptive Mode Switching for Dual Mode SWIPT","authors":"Jong Jin Park, J. Moon, Kangyoon Lee, Dong In Kim","doi":"10.1109/WPTC45513.2019.9055621","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055621","url":null,"abstract":"In this paper, we implement transmitter-oriented dual mode simultaneous wireless information and power transfer (SWIPT) system in which two types (single/multi-tone) of communication mode are adopted to achieve the benefit of each communication mode. Duty-cycling operation is introduced for low-power consuming IoT devices to be self-powered. We propose a mixed-time scale based adaptive mode switching (MS) algorithm, in which a transmitter updates the MS threshold in long-term scale with deep recurrent neural networks (RNN) while deciding communication mode in short-term scale. The proposed algorithm enables the realization of battery-free IoT network.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126902194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifactorial rig for study of inductive powering systems with arbitrary orientation of the coils 用于研究线圈任意方向感应供电系统的多因素实验台
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055673
A. Danilov, E. Mindubaev, K. Gurov
{"title":"Multifactorial rig for study of inductive powering systems with arbitrary orientation of the coils","authors":"A. Danilov, E. Mindubaev, K. Gurov","doi":"10.1109/WPTC45513.2019.9055673","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055673","url":null,"abstract":"The aim of this work was to develop a multifactorial rig for the study of the process of wireless power transfer. This rig must provide means for gathering large amounts of data in an automated way for various types of misalignments, circuit solutions and geometry of the coil couple. For implementation of the rig stepper motors with guidescrews and servo drives with the use of under the control of the microcontroller, and unified frames for the manufacture of the coils were used. The designed multifactorial rig together with the developed software for automated control allows convenient orientation of the coils and provides means for measurement of large amounts of data. Finally, a method was developed for calculating mutual inductance, output power and efficiency without the data from the receiver, and a method for controlling the quality factor of the system powered from a signal generator.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126217971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Evaluation of Coupling Coils for Underwater Wireless Power Transfer 水下无线电力传输耦合线圈的实验评价
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055518
C. Duarte, Francisco Goncalves, Miguel Silva, Vasco Correia, L. Pessoa
{"title":"Experimental Evaluation of Coupling Coils for Underwater Wireless Power Transfer","authors":"C. Duarte, Francisco Goncalves, Miguel Silva, Vasco Correia, L. Pessoa","doi":"10.1109/WPTC45513.2019.9055518","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055518","url":null,"abstract":"In this work we focus on the influence of salt water as the medium between two coupling coils to design a wireless power transfer system. An electrical circuit model and an adequate characterization approach is presented to account for the power losses in the conductive medium. Optimum values for the load and efficiency of the power link are determined. Experimental results are provided to compare the performance of the coupling coils between different coupling mediums (air, fresh and salt water).","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122090169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Optimizing the Power Output for a Capacitive Wireless Power Transfer System with $N$ receivers 具有N个接收器的电容式无线电力传输系统的功率输出优化
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055678
B. Minnaert, F. Mastri, A. Costanzo, M. Mongiardo, N. Stevens
{"title":"Optimizing the Power Output for a Capacitive Wireless Power Transfer System with $N$ receivers","authors":"B. Minnaert, F. Mastri, A. Costanzo, M. Mongiardo, N. Stevens","doi":"10.1109/WPTC45513.2019.9055678","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055678","url":null,"abstract":"Capacitive wireless power transfer from one transmitter to multiple receivers is discussed and analytically solved for the realization of maximum power transfer to uncoupled receivers. Simple closed-form expressions for the optimal terminating loads and the corresponding power output and transducer gain are determined by applying the maximum power transfer theorem. The results are validated by circuital simulation.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129078357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
A Self-Synchronous Rectifier for Application of W-level Input Power 一种用于w级输入电源的自同步整流器
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055576
Ying Wang, G. Wei, F. You, Xumin Yu, Yazhou Dong, Xiaojun Li
{"title":"A Self-Synchronous Rectifier for Application of W-level Input Power","authors":"Ying Wang, G. Wei, F. You, Xumin Yu, Yazhou Dong, Xiaojun Li","doi":"10.1109/WPTC45513.2019.9055576","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055576","url":null,"abstract":"A new design method of a self-synchronous rectifier based on time reversal duality theory for demand of W-level microwave input power in space is proposed in this paper. At 2.8 GHz, the fabricated circuit delivered a maximum conversion efficiency of 70.8% with 40dBm microwave input power and 50 Ω load resistance.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127564913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Reconfigurable Antenna for Enhancing the Magnetic Coupling in WPT 一种用于增强WPT磁耦合的可重构天线
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055593
Jaafar Al Sinayyid, H. Takhedmit, P. Poulichet, M. Grzeskowiak, A. Diet, G. Lissorgues
{"title":"A Reconfigurable Antenna for Enhancing the Magnetic Coupling in WPT","authors":"Jaafar Al Sinayyid, H. Takhedmit, P. Poulichet, M. Grzeskowiak, A. Diet, G. Lissorgues","doi":"10.1109/WPTC45513.2019.9055593","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055593","url":null,"abstract":"IPT (Inductive Power Transfer) is an approach based on magnetic coupling to realize a wireless power transfer (WPT) system. In applications using IPT as a mean for transferring power, like RFID, it is of great interest to have a free positioning system, meaning with fewer constraints on relative positioning and orientation between the sender and the receiver. One of the problems which face the free positioning WPT by using IPT is the great sensitivity of the system to lateral and orientational misalignment between the sender and the receiver of power. This could hugely reduce the efficiency of the whole system for certain lateral and orientational misalignments, resulting in null points for the coupling coefficient, therefore no power transfer or no detection in case of RFID. In this work, we propose a reconfigurable antenna which changes its structure by turning on and off specific parts of itself. This will guarantee the effective power transfer in the range of interest, regardless of the lateral and orientational misalignments between the sender and the receiver. The same system can be used to increase the RFID read range by steering the magnetic field in certain direction. In general, the steering of the magnetic field could be used to achieve more efficient power transfer.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128331765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Wireless Power Receiver with Wide Dynamic Range for Biomedical Implants 生物医学植入物宽动态范围无线电源接收器
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055661
Hankyu Lee, Seungchul Jung, Yeunhee Huh, Sang Joon Kim
{"title":"Wireless Power Receiver with Wide Dynamic Range for Biomedical Implants","authors":"Hankyu Lee, Seungchul Jung, Yeunhee Huh, Sang Joon Kim","doi":"10.1109/WPTC45513.2019.9055661","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055661","url":null,"abstract":"A wireless power receiver with wide input power dynamic range is proposed. It includes a Dickson charge pump for low power region and an active rectifier for high efficiency at high power region. A boost converter charges battery up to 4.2V and charging current monitor enables dynamic mode change between charge pump and active rectifier, those which should not operate simultaneously. Wide input dynamic range of 31dB (−12.5 ~ 18.5dBm) is achieved by the dynamic mode change. The measured maximum efficiency is 60%. An in-vitro experiment is performed with human body simulant solution.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123759281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
GaN Schottky Barrier Diode for Sub-Terahertz Rectenna 用于次太赫兹整流器的 GaN 肖特基势垒二极管
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055630
Sei Mizojiri, K. Takagi, K. Shimamura, Shigeru Yokota, M. Fukunari, Y. Tatematsu, T. Saito
{"title":"GaN Schottky Barrier Diode for Sub-Terahertz Rectenna","authors":"Sei Mizojiri, K. Takagi, K. Shimamura, Shigeru Yokota, M. Fukunari, Y. Tatematsu, T. Saito","doi":"10.1109/WPTC45513.2019.9055630","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055630","url":null,"abstract":"We developed GaN schottky barrier diode (SBD) for sub-terahertz rectenna to improve the RF-DC conversion efficiency and DC output power. Designed a GaN SBD using the device simulator and fabricated prototype. The similar 1-V curve was obtained between measurement and simulation. Furthermore, calculated the theoretical RF-DC conversion efficiency on the rectenna. As a result, diodes with series resistance 3.6 Ω, junction capacitance 0.035 pF and breakdown voltage 46.3 V were calculated. The RF-DC conversion efficiency of 78% was theoretically obtained at 303 GHz. This work showed RF-DC conversion efficiency can be greatly improved using GaN SBD for rectenna in sub-terahertz (herein 100 GHz ~ 700 GHz).","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127074694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Visualization of Energy Flow in Wireless Power Transfer Systems 无线电力传输系统中能量流的可视化
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055544
Hanwei Wang, Cheng Zhang, S. Hui
{"title":"Visualization of Energy Flow in Wireless Power Transfer Systems","authors":"Hanwei Wang, Cheng Zhang, S. Hui","doi":"10.1109/WPTC45513.2019.9055544","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055544","url":null,"abstract":"A time-efficient computational framework to plot the time-varying and time-averaged space distribution of Poynting vectors in an inductive wireless power transfer system is presented in this paper. It can deal with any arbitrarily shaped winding. The time and space complexities are reduced compared to popular CEM methods. This framework uses 1-dimensional segmentation instead of 3-dimensional mesh gridding. The currents in the windings are solved analytically and the field strength values are directly calculated by numerical integrations. Several examples are included in this paper. It can be further integrated with design and optimization tools for wireless power transfer applications that would allow automated circuit design. It can also help industrial designers understand the energy flow in air intuitively.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125179676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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