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2015 IEEE Wireless Power Transfer Conference (WPTC)最新文献

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Inductive 3-coil wireless power transfer improved by T-type impedance matching for implanted biomedical IC 基于t型阻抗匹配改进的植入式生物医学集成电路电感式三圈无线电力传输
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140147
Chung K. Chang, Chin-Lung Yang
{"title":"Inductive 3-coil wireless power transfer improved by T-type impedance matching for implanted biomedical IC","authors":"Chung K. Chang, Chin-Lung Yang","doi":"10.1109/WPT.2015.7140147","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140147","url":null,"abstract":"This paper applies the printed spiral coil (PSC) using T-type impedance matching in wireless power transfer (WPT) technology for analysis of biomedical implant devices. To reduce the loading effect in the implant devices, three-coil WPT systems are preferred rather than two-coil WPT systems. Two layers comprising of printed spiral resonator coils and load loops on each side of FR4 is designed and fabricated on the side of implantable devices. PSC for biomedical implant devices can be optimized by adjusting geometric parameters. The implanting coil occupies an area of 5×5 mm2 fabricated on a FR4 board. The geometric parameters are investigated to find out PSC optimal values of the impedance matching for the load coil. The power transfer efficiency of the simulated and measured results are compared with for each case. After experiments, compared with other same type of WPT devices, the maximum power is transmitted to the load side to achieve the best efficiency. Finally, at distance of 5 mm, the measured three-coil architecture achieved more than maximum transmission efficiency increases of 83% compared to the equivalent two-coil system.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131533618","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
An experimental evaluation of wireless power transfer protocols in mobile ad hoc networks 移动自组织网络中无线电力传输协议的实验评估
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139128
S. Nikoletseas, Theofanis P. Raptis, Alexandros Souroulagkas, Dimitrios Tsolovos
{"title":"An experimental evaluation of wireless power transfer protocols in mobile ad hoc networks","authors":"S. Nikoletseas, Theofanis P. Raptis, Alexandros Souroulagkas, Dimitrios Tsolovos","doi":"10.1109/WPT.2015.7139128","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139128","url":null,"abstract":"We employ wireless chargers that charge the battery of the network nodes in mobile ad hoc networks and we propose two new, alternative protocols that configure the activity of the chargers. One protocol performs wireless charging focused on the charging efficiency, while the other aims at proper balance of the chargers' residual energy. Towards a more realistic validation, we perform the evaluation, not in a simulation environment, but through an experimental setting of real devices.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132755296","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: 26
Investigation of power transfer density enhancement in large air-gap capacitive wireless power transfer systems 大气隙电容式无线电力传输系统中功率传输密度增强的研究
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140182
Ashish Kumar, Saad Pervaiz, Chieh-Kai Chang, S. Korhummel, Z. Popovic, K. Afridi
{"title":"Investigation of power transfer density enhancement in large air-gap capacitive wireless power transfer systems","authors":"Ashish Kumar, Saad Pervaiz, Chieh-Kai Chang, S. Korhummel, Z. Popovic, K. Afridi","doi":"10.1109/WPT.2015.7140182","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140182","url":null,"abstract":"This paper introduces a new capacitive wireless power transfer approach with the potential to significantly enhance power transfer density in large air-gap applications. This enhancement is achieved through the use of multiple phase-shifted capacitive plates that reduce fringing fields in areas where field levels must be limited for safety reasons. The effectiveness of the proposed approach is evaluated using an analytical framework and validated using finite-element and circuit simulations. It is shown that a 6.78-MHz eight plate-pair system based on the proposed approach reduces fringing fields by a factor of five relative to a two plate-pair system while retaining the same power transfer density.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131907982","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: 79
Multi-capacitor circuit application for the wireless energy transmission system coils resonant frequency adjustment 多电容电路应用于无线能量传输系统线圈谐振频率调节
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140142
Rodion Saltanovs
{"title":"Multi-capacitor circuit application for the wireless energy transmission system coils resonant frequency adjustment","authors":"Rodion Saltanovs","doi":"10.1109/WPT.2015.7140142","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140142","url":null,"abstract":"The article deals with the common problem of wireless energy transfer due to transmission coils misalignment, which creates substantial drift from the resonant frequency, and instability and low efficiency as a result. Research and tests of wireless energy transmission system prototype with full-scale transmission coils using the principle described assure that the method of adjusting the resonant frequency by using multi-capacitors circuit controlled allows to stabilize and fine-tune resonance frequency.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124777946","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: 13
A compact 2.45 GHz, low power wireless energy harvester with a reflector-backed folded dipole rectenna 一个紧凑的2.45 GHz，低功耗无线能量采集器与反射器背面折叠偶极子整流天线
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140159
I. Ramos, Z. Popovic
{"title":"A compact 2.45 GHz, low power wireless energy harvester with a reflector-backed folded dipole rectenna","authors":"I. Ramos, Z. Popovic","doi":"10.1109/WPT.2015.7140159","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140159","url":null,"abstract":"This paper paper describes the design procedure as well as the experimental performance of a 2.45GHz 10 μW wireless energy harvester (WEH) with a maximum total efficiency of ≈ 30% at 1 μW/cm2 incident power density. The WEH integrates a shunt high-speed rectifying diode with a folded dipole. A metal reflector increases the gain of the rectenna and a quarter wavelength differential line is used as a choke. Both a VDI WVD and a Skyworks GaAs Schottky diode are integrated with the antenna and their performance is compared.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129810658","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: 15
Near field wireless power transfer and quadrature amplitude modulated (QAM) communication link 近场无线电力传输和正交调幅通信链路
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139131
J. Besnoff, D. Ricketts
{"title":"Near field wireless power transfer and quadrature amplitude modulated (QAM) communication link","authors":"J. Besnoff, D. Ricketts","doi":"10.1109/WPT.2015.7139131","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139131","url":null,"abstract":"We present a near field wireless power transfer (NF-WPT) link which is also capable of data communication through complex, quadrature amplitude (QAM) load modulation. We present a method for designing a 4QAM constellation that allows for minimal degradation of the NF-WPT link efficiency by minimizing the complex reflection coefficient. Using a modulation board and a resonant 4-coil NF-WPT system we demonstrate 307.2kbps data transmission, representing a 12.7% fractional bandwidth, over a distance of 1-coil diameter (29cm) at a carrier frequency of 2.428MHz. Efficiency of the NF-WPT is only reduced from 68% to approximately 63.1% when used for data communication as well as power transfer.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132902265","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
Techno-economic feasibly and environmental impact of wireless power transfer roadway electrification 无线输电巷道电气化的技术经济可行性及环境影响
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7139140
Jason C. Quinn, Braden J. Limb, Zeljko Pantic, P. Barr, R. Zane
{"title":"Techno-economic feasibly and environmental impact of wireless power transfer roadway electrification","authors":"Jason C. Quinn, Braden J. Limb, Zeljko Pantic, P. Barr, R. Zane","doi":"10.1109/WPT.2015.7139140","DOIUrl":"https://doi.org/10.1109/WPT.2015.7139140","url":null,"abstract":"Integration of wireless power transfer (WPT) systems in roadways and vehicles represents a promising alternative to traditional internal combustion transportation systems. The economic feasibility and environmental impact of WPT applied to the transportation system is evaluated through the development of engineering system models. For a 20% penetration, results show a 20% reduction in air pollutants, 10% reduction in energy use and CO2 emissions and a societal level payback (defined as total cost of ownership savings compared to a traditional vehicle equal to roadway infrastructure) of 3 years. The modeled system covers 86% of all traffic in the US, impacts 40% of all roadways and shifts $180 billion per year from oil production to jobs in local power generation and development, construction, and maintenance of electrified roadways and new electric vehicles. Results on model sensitivity to energy prices, payback as a function of penetration, and trucking vs light duty use will be presented.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126702956","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: 15
Backscatter radio coverage enhancements using improved WPT signal waveform 使用改进的WPT信号波形增强反向散射无线电覆盖
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140134
R. Correia, N. Borges Carvalho, S. Kawasaki
{"title":"Backscatter radio coverage enhancements using improved WPT signal waveform","authors":"R. Correia, N. Borges Carvalho, S. Kawasaki","doi":"10.1109/WPT.2015.7140134","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140134","url":null,"abstract":"This paper presents the enhancement and optimization of a backscatter radios coverage, by using special designed waveforms for a dedicated WPT path, the backscatter radio is built using a specific frequency path for powering up the device, and several waveforms are tested to power up the overall systems, those include multi-sines and modulated signals. It was proved that a multisine signal with 0° phase between the tones can produce better DC values when compared with a single tone excitation with same input power. With the use of modulated signals it was shown that, compared with CW, yielded better results in efficiency.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126295644","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
Wireless single contact power delivery 无线单触点供电
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140138
C. W. van Neste, Richard Hull, T. Abraham, J. Hawk, A. Phani, T. Thundat
{"title":"Wireless single contact power delivery","authors":"C. W. van Neste, Richard Hull, T. Abraham, J. Hawk, A. Phani, T. Thundat","doi":"10.1109/WPT.2015.7140138","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140138","url":null,"abstract":"We expand on our recently developed single contact transmission method and apply it toward short-range wireless power delivery. The connection between a conductive surface and a receiver, which was directly connected in our initial system, can be made capacitive by extending the receiver a short distance off the surface. This allows the system to function in a purely wireless mode. We demonstrate the wireless transmission of power to a 25 W load at varying distances from an aluminum foil sheet. The transfer efficiency is given with respect to receding distance from the sheet with an average efficiency of 80% over a 3 cm separation for the experimental system.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126325367","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: 12
Numerical analysis of EMF safety and thermal aspects in a pacemaker with a Wireless Power Transfer system 基于无线能量传输系统的起搏器电磁场安全性和热特性的数值分析
2015 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2015-05-13 DOI: 10.1109/WPT.2015.7140172
T. Campi, S. Cruciani, Gilda Paolini Santilli, M. Feliziani
{"title":"Numerical analysis of EMF safety and thermal aspects in a pacemaker with a Wireless Power Transfer system","authors":"T. Campi, S. Cruciani, Gilda Paolini Santilli, M. Feliziani","doi":"10.1109/WPT.2015.7140172","DOIUrl":"https://doi.org/10.1109/WPT.2015.7140172","url":null,"abstract":"This study deals with the numerical dosimetry analysis of a Wireless Power Transfer (WPT) system based on magnetic resonant coupling applied to a pacemaker for recharge its battery. Considering a quite low operational frequency (f=300 kHz), it is possible to obtain good results in terms of transferred power within a low impact on EMC and EMF safety issues. The numerical study permits to evaluate the temperature increase in the human body model by a thermal analysis.","PeriodicalId":194427,"journal":{"name":"2015 IEEE Wireless Power Transfer Conference (WPTC)","volume":"327 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121671835","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: 12
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