发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
A 19.6 dB Input Power Range 403 MHz Rectifier Based on Quality Factor in Matching Technique 基于质量因子匹配技术的19.6 dB输入功率范围403mhz整流器
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055538
NgocDuc Au, C. Seo, K. Park, Seungmo Hong
{"title":"A 19.6 dB Input Power Range 403 MHz Rectifier Based on Quality Factor in Matching Technique","authors":"NgocDuc Au, C. Seo, K. Park, Seungmo Hong","doi":"10.1109/WPTC45513.2019.9055538","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055538","url":null,"abstract":"To extend the input power range and increase RF sensitivity for energy harvesting in medical implant communication service (MICS) band, a high quality (Q) matching network is applied in 403 MHz rectifier circuit. In this proposed design, a finite unload Q series inductor is placed between a pair of shunt capacitors to enhance the overall load Q factor of impedance matching network when compared with conventional type. By using lump components, the compact size of rectifier is 1.4 cm x 0.8 cm that suitable for medical implant devices in human body tissue. The compact-size rectifier has the measured efficiency $(eta)$ where the input power range for $eta$ above 50.1 % is from -8.1 dBm (RF sensitivity) to 11.5 dBm and thus, the input power range of 19.6 dB is achieved. At 5 dBm the peak efficiency is 68.1 %.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"36 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":"132317282","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
We've Got the Power: Overcoming the Distance Enlargement Fraud with Wireless Power Transfer 我们有了力量:克服无线电力传输的距离扩大欺诈
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055566
L. Botler, K. Diwold, Kay Romer
{"title":"We've Got the Power: Overcoming the Distance Enlargement Fraud with Wireless Power Transfer","authors":"L. Botler, K. Diwold, Kay Romer","doi":"10.1109/WPTC45513.2019.9055566","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055566","url":null,"abstract":"Distance bounding protocols have been previously introduced to establish upper and lower boundson the distance between two entities. This article demonstrates how coupled transmission techniques, stemming from the domain of wireless power transfer, can be used for distance bounding. The proposed approach can detect and prevent distance enlargement frauds, which were deemed unsolvable for electromagnetic propagation-based distance bounding protocols. The effectiveness of the proposed approach is demonstrated and evaluated via numerical simulations. The results suggest that the proposed approach is capable of measuring the distance between two devices communicating via inductive coupling with an average accuracy of 8.14cm when using a hardware with 12-bit voltage measurement resolution in the absence of noise.","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":"125504916","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
10W Class High Power C-Band Rectifier Using GaN HEMT 10W级高功率c波段GaN HEMT整流器
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055692
S. Yoshida, K. Nishikawa, S. Kawasaki
{"title":"10W Class High Power C-Band Rectifier Using GaN HEMT","authors":"S. Yoshida, K. Nishikawa, S. Kawasaki","doi":"10.1109/WPTC45513.2019.9055692","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055692","url":null,"abstract":"This paper demonstrates fundamental evaluation results of a C-band rectifier using gallium nitride (GaN) high electron mobility transistor (HEMT). To achieve rectification at high power range, the GaN HEMT is utilized. TGF2023-2-05 of Qorvo is used for the HEMT. A rectifier circuit is designed on a RO4350B substrate. Only fundamental wave matching is considered. The designed rectifier is fabricated and measured. Maximum rectification efficiency of 44.8 % at 5.78 GHz while the load resistance is $20Omega$ is obtained from the measurement. Maximum output DC power is 9661 mW when RF input power is 44.2dBm.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"22 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":"126903186","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
Capacitively Coupled Resonators for Misalignment-Tolerant Wireless Charging through Metallic Cases 金属壳容错无线充电电容耦合谐振器
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055695
Fabiano Cezar Domingos, Susanna Vital de Campos de Freitas, R. Mirzavand, P. Mousavi
{"title":"Capacitively Coupled Resonators for Misalignment-Tolerant Wireless Charging through Metallic Cases","authors":"Fabiano Cezar Domingos, Susanna Vital de Campos de Freitas, R. Mirzavand, P. Mousavi","doi":"10.1109/WPTC45513.2019.9055695","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055695","url":null,"abstract":"This work proposes a novel wireless power transfer (WPT) system in the near-field region using open-ended helical resonators (OEHRs), taking advantage of their high quality factor characteristics. Instead of using the conventional approach of magnetic coupling between resonators, capacitive coupling is introduced between transmitter and receiver devices. This new configuration is designed to operate at the frequency of 6.78 MHz and is evaluated by measurement, simulation and equivalent circuit analysis. Furthermore, the proposed technology allows significant misalignment between transmitter and receiver structures, as well as enabling WPT to devices with a metallic case, which is not practical in conventional charging topologies.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"23 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":"122344543","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
A Wireless Charging Coil in Printed Circuit Board with Partially Split Conductors for Low Resistance 一种用于低电阻部分分离导体印刷电路板的无线充电线圈
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055667
Yujun Shin, Jaehyoung Park, Haerim Kim, Bumjin Park, Jongwook Kim, Chanjun Park, Seungyoung Ahn
{"title":"A Wireless Charging Coil in Printed Circuit Board with Partially Split Conductors for Low Resistance","authors":"Yujun Shin, Jaehyoung Park, Haerim Kim, Bumjin Park, Jongwook Kim, Chanjun Park, Seungyoung Ahn","doi":"10.1109/WPTC45513.2019.9055667","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055667","url":null,"abstract":"The paper proposed a PCB type coil with partially split conductors which have reduced resistance compared to a conventional PCB type coil. In order to design the proposed PCB type coil, a position where the resistance per unit length is relatively large in the conventional PCB type coil was analyzed by calculation. Then we analyzed total resistance of the PCB type coils according to the number of divided conductors by calculation. The PCB type coil with a proposed design was fabricated for measurement. Resistance of each coil was measured using a vector network analyzer. Experiment results show that the proposed PCB type coil has resistance reduced by 28% compared to the conventional PCB type coil. In addition, results of circuit simulation show that when the proposed PCB type coils are used to 15 W class wireless power transfer system, the efficiency increased by 5.2 % compared to the conventional coils.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"36 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":"125111085","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
Influences of Magnetic Couplings in Transmitter Array of MIMO Wireless Power Transfer System 磁耦合对MIMO无线电力传输系统发射机阵列的影响
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055594
Kyungtae Kim, Ji-Woong Choi
{"title":"Influences of Magnetic Couplings in Transmitter Array of MIMO Wireless Power Transfer System","authors":"Kyungtae Kim, Ji-Woong Choi","doi":"10.1109/WPTC45513.2019.9055594","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055594","url":null,"abstract":"Wireless power transfer (WPT) based on the magnetic field has a sharply decreasing efficiency as a charging distance increases. The magnetic beamforming, derived from a radio-frequency (RF) beamforming of the communication field, is the technology to overcome its disadvantage. The WPT with the magnetic beamforming controls the magnetic fields induced from the multiple transmitters, which results in transferring much power to the receiver. Furthermore, the magnetic beamforming can be applied to the WPT employing the multiple receivers, which implies that it is possible to efficiently charge multiple devices simultaneously. However, since the magnetic beamforming requires the transmitter array configured as the multiple transmitters, magnetic couplings between the multiple transmitters inevitably occur. The main objective of this paper is analyzing adverse influences of the magnetic couplings in the transmitters to the multiple-inputs and multiple-outputs (MIMO) WPT with the magnetic beamforming. Theoretical analysis and simulation results are provided from various viewpoints.","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":"131205743","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
Automated Design Optimization for CMOS Rectifier Using Deep Neural Network (DNN) 基于深度神经网络(DNN)的CMOS整流器自动设计优化
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055537
Heng Wah Ho, W. W. Lau
{"title":"Automated Design Optimization for CMOS Rectifier Using Deep Neural Network (DNN)","authors":"Heng Wah Ho, W. W. Lau","doi":"10.1109/WPTC45513.2019.9055537","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055537","url":null,"abstract":"A previously designed CMOS rectifier is optimized with the help of Deep Neural Network (DNN) to identify maximum power conversion efficiency (PCE) for various input RF power (from antenna) and load conditions. The condition for an additional improvement of 1.8% in PCE is identified and cross validated with simulation result.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"81 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":"127752937","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: 2
Maximum Efficiency Point Tracking in Inductive Links: Series Versus Parallel Receiver's Compensation 感应链路的最大效率点跟踪:串联与并联接收机补偿
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055556
Pablo Pérez-Nicoli, F. Silveira
{"title":"Maximum Efficiency Point Tracking in Inductive Links: Series Versus Parallel Receiver's Compensation","authors":"Pablo Pérez-Nicoli, F. Silveira","doi":"10.1109/WPTC45513.2019.9055556","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055556","url":null,"abstract":"The postregulation method of an inductive power link consists of adjusting its output voltage directly in the receiver by using a feedback dc-dc converter, thus without having to rely on back telemetry. In postregulated systems, the maximum efficiency point (MEP) of the link can be tracked by adjusting the transmitter voltage amplitude in closed-loop. In this paper, we analyze how the series and parallel receiver compensation affect differently the closed-loop control of the MEP tracking. The theoretical analysis proves that the MEP cannot be achieved with a series compensation but it can be attained with a parallel compensation. Additionally, the theoretical analysis predicts how any more complex resonant structure affects the attainability of the MEP. Finally, the analysis is validated by simulations and measurements. The proof-of-concept system postregulates the output voltage at 5 V and achieves the MEP of 40% in measurements while delivering 50 mW to the load, working at 13.56 MHz with 1-cm-air-gap and a 25mmx25mm receiver.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"58 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":"133974914","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
Alternative Configuration of Open-Bifilar Coil for Self-Resonant Wireless Power Transfer System 自谐振无线电力传输系统开路双线线圈的备选配置
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055563
C. M. de Miranda, S. F. Pichorim
{"title":"Alternative Configuration of Open-Bifilar Coil for Self-Resonant Wireless Power Transfer System","authors":"C. M. de Miranda, S. F. Pichorim","doi":"10.1109/WPTC45513.2019.9055563","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055563","url":null,"abstract":"The use of self-resonant coils for wireless power transfer is a promising field since it avoids the use of a real capacitor. It is known that the classical inductor model leads to a parallel-circuit resonance with maximum impedance at resonant frequency. However, series compensation in transmitter and receiver circuits (series-series) is the simplest configuration of a wireless power transfer system. In this study an alternative configuration of an open-bifilar coil is presented. In this way, it is possible to obtain a series self-resonant frequency with minimum impedance at resonance, which allows a series-series compensation, capacitorless wireless power transfer (WPT) system.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"6 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":"132007418","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
Modified Log Periodic Spiral Antenna for Multi-Band RF Energy Harvesting Applications 用于多波段射频能量采集的改进对数周期螺旋天线
2019 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2019-06-01 DOI: 10.1109/WPTC45513.2019.9055540
K. Gangwar, J. Tissier
{"title":"Modified Log Periodic Spiral Antenna for Multi-Band RF Energy Harvesting Applications","authors":"K. Gangwar, J. Tissier","doi":"10.1109/WPTC45513.2019.9055540","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055540","url":null,"abstract":"In this paper, a modified log spiral antenna for multi-band application with co-axial feed mechanism is proposed. Two optimized Slots Ring Resonators (SRR) have been added around the log spiral antenna to expand bandwidth at low frequencies without increasing its initial size. The proposed antenna operates in the frequency range of 0.7 GHz-1GHz/1.1GHz-1.4GHz/1.5GHz-3GHz. The proposed antenna shows omnidirectional pattern in elevation plane and dipole type radiation pattern characteristics in azimuthal plane. Gain of the proposed antenna lies between 3.5 dBi–5.1 dBi. The Antenna is fabricated on FR4-epoxy substrate of dimension 116 × 116 × 1.6 mm3. Simulation and analysis of the proposed structure has been carried out by using HFSS EM simulation software. Simulation results have been confirmed in measurement. The presented structure can be utilized for RF energy Harvesting for GSM-900 (921 to 960 MHz), GSM-1800 (1805 to 1880 MHz), UMTS (2110 to 2170 MHz) and Wi-Fi (2400 to 2480 MHz).","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"62 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":"133111744","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: 3
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信