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2016 IEEE Wireless Power Transfer Conference (WPTC)最新文献

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Analysis of a Near Field Communication wireless power system 一种近场通信无线供电系统的分析
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498827
Yi Zhao, Brody J. Mahoney, Joshua R. Smith
{"title":"Analysis of a Near Field Communication wireless power system","authors":"Yi Zhao, Brody J. Mahoney, Joshua R. Smith","doi":"10.1109/WPT.2016.7498827","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498827","url":null,"abstract":"Near Field Communication (NFC) readers, ubiquitously embedded in smart-phones, buses and other infrastructures, are able to wirelessly deliver mW-level power to ultra-low power, passive NFC tags via a coupled magnetic field. Additionally, an NFC reader can leverage the coupled communication channel to support relatively heavy computational applications, such as sensing, visual displays, etc. Consequently, reliable and efficient power-transfer with robust communication in the cm reading range is required to enable various more demanding NFC-WISP applications. However, there is a fundamental tradeoff between wireless power delivery and resonator bandwidth, which are critical to NFC communication. Another common trait of magnetically coupled systems is the vulnerability to variations in tag reading distance and antenna misalignment. To mitigate these challenges, we present two simulation-based investigations to study the power transfer and bandwidth performance given different NFC reading range with consideration of parasitic effects. Firstly, we compare a 2-coil NFC system with a 3-coil NFC system via theoretical analysis utilizing a simplified simulation model by ignoring the cross-coupling effect. Secondly, we present the influence of cross-coupling effects of a 3-coil system using a complex model. Finally, we demonstrate the effect of parasitic capacitance across coils for both 2 and 3-coil systems.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115379863","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: 7
Experimental investigation of 1D, 2D, and 3D metamaterials for efficiency enhancement in a 6.78MHz wireless power transfer system 一维、二维和三维超材料在6.78MHz无线电力传输系统中提高效率的实验研究
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498809
Wenwen Li, Ping Wang, C. Yao, Yingyi Zhang, Houjun Tang
{"title":"Experimental investigation of 1D, 2D, and 3D metamaterials for efficiency enhancement in a 6.78MHz wireless power transfer system","authors":"Wenwen Li, Ping Wang, C. Yao, Yingyi Zhang, Houjun Tang","doi":"10.1109/WPT.2016.7498809","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498809","url":null,"abstract":"In this paper, we experimentally validate the effects of different structures of metamaterial on efficiency enhancement in a four-coil magnetic resonant wireless power transfer system operating at 6.78MHz. First, we propose a concise design of magnetic metamaterials. A 6×6 planar array metamaterial slab is simulated to investigate its effect on power transmission between transmitter and receiver. The proposed metamaterials are fabricated for their application in the wireless power transfer system. Transmission and reflection coefficients of the system with 1-dimentional (including 1-slab and 2-slab), 2-dimentional, and 3-dimentional metamaterials at different positions are measured to investigate their influence on power transmission and to optimize the position of metamaterials in each case. Finally, the platform with metamaterials is utilized to light a 15W bulb to explicitly demonstrate the efficiency enhancement.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134146755","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: 16
Selective collapse of nonlinear time reversed electromagnetic waves 非线性时间反转电磁波的选择性坍缩
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498867
S. Roman, Rahul Gogna, S. Anlage
{"title":"Selective collapse of nonlinear time reversed electromagnetic waves","authors":"S. Roman, Rahul Gogna, S. Anlage","doi":"10.1109/WPT.2016.7498867","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498867","url":null,"abstract":"We envision a WPT process based on time-reversed propagation of electromagnetic (EM) waves in a complex scattering environment. This process has been well documented for targeting of either a single linear or nonlinear object. We numerically demonstrate selective targeting between two diodes simultaneously with different degrees of nonlinearity in a two-dimensional ray- chaotic billiard model. We demonstrate a 10.1:1 power delivery aspect ratio between the two diodes.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134474944","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
Hybrid metamaterial with zero and negative permeability to enhance efficiency in wireless power transfer system 零磁导率和负磁导率混合超材料提高无线电力传输系统效率
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498808
Yeonje Cho, Seongsoo Lee, Seungtaek Jeong, Hongseok Kim, C. Song, Kibum Yoon, Jinwook Song, Sunkyu Kong, Y. Yun, Joungho Kim
{"title":"Hybrid metamaterial with zero and negative permeability to enhance efficiency in wireless power transfer system","authors":"Yeonje Cho, Seongsoo Lee, Seungtaek Jeong, Hongseok Kim, C. Song, Kibum Yoon, Jinwook Song, Sunkyu Kong, Y. Yun, Joungho Kim","doi":"10.1109/WPT.2016.7498808","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498808","url":null,"abstract":"Metamaterials with negative relative permeability can change magnetic field in the opposite direction. It can also change the magnetic field direction to straight if it has zero relative permeability. Previously reported metamaterials use only single characteristic which is a negative or a zero permeability to enhance efficiency by field confinement in wireless power transfer (WPT) systems. In this paper, we combined two kinds of structures of metamaterial cells, which have the negative and zero permeability. The hybrid metamaterial slab (HMS) is designed by using two spiral type patterns on a double layered PCB. It has the negative permeability at the edge of the slab and the zero permeability at the center of the slab. The HMS can confine greater magnetic fields around and inside transmit and receive coils. Therefore, the hybrid metamaterials can increase the power efficiency by 21.4% at 20 cm distance in 6.78 MHz WPT systems compared to the previous single permeability metamaterial slab (SMS).","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132709798","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: 14
Heuristic passive and active matching circuit design method for wireless power transfer for moving objects 运动物体无线电力传输的启发式无源与有源匹配电路设计方法
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498866
J. Bito, Soyeon Jeong, M. Tentzeris
{"title":"Heuristic passive and active matching circuit design method for wireless power transfer for moving objects","authors":"J. Bito, Soyeon Jeong, M. Tentzeris","doi":"10.1109/WPT.2016.7498866","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498866","url":null,"abstract":"In this paper, a novel matching circuit design method utilizing a genetic algorithm and measured S-parameters of randomly moved coils is discussed. From the analytical comparison of different matching circuit topology, the superiority of active matching circuit is suggested, and potentially there is 21.4 % improvement in wireless power transfer efficiency by using 4 cell active matching circuit, which can create 16 different impedance values. Also, the matching circuit design simulation can be simplified by choosing representative impedance values of coils utilizing K-means clustering and use these values as targets. This drastically reduce the time for the matching circuit design simulation, especially for the matching circuit with larger number of cells.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134530679","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: 8
Wireless power transmission in small airplanes 小型飞机的无线电力传输
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498837
J. Vélim, M. Cupal, D. Krutilek, Z. Raida
{"title":"Wireless power transmission in small airplanes","authors":"J. Vélim, M. Cupal, D. Krutilek, Z. Raida","doi":"10.1109/WPT.2016.7498837","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498837","url":null,"abstract":"In the paper, we describe results of experimental investigations of in-plane wireless power transmission supported by a 3D textile material. The 3D textile upholstery is fed by planar horn antennas optimized for the frequency band from 7.5 GHz to 8.5 GHz. Using screen printing by a silver paste, slot ring antennas are created on the upholstery to deliver electromagnetic energy to passengers on seats below. Functionality of the described concept has been verified experimentally.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121273353","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 design of inductive coupling wireless power receiver with high efficiency Active Rectifier and multi feedback LDO regulator 一种具有高效有源整流器和多反馈LDO调节器的感应耦合无线电源接收器的设计
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498865
Young-Jun Park, Seongjin Oh, Sang-Yun Kim, SungHun Cho, Minchan Kim, Ju-Hyun Park, Dongsoo Lee, HongJin Kim, Kangyoon Lee
{"title":"A design of inductive coupling wireless power receiver with high efficiency Active Rectifier and multi feedback LDO regulator","authors":"Young-Jun Park, Seongjin Oh, Sang-Yun Kim, SungHun Cho, Minchan Kim, Ju-Hyun Park, Dongsoo Lee, HongJin Kim, Kangyoon Lee","doi":"10.1109/WPT.2016.7498865","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498865","url":null,"abstract":"This paper presents an inductive coupling wireless power receiver with high efficiency active rectifier and multi feedback LDO regulator. The synchronous active rectifier with the zero current sensing is proposed to achieve the high efficiency minimizing the reverse leakage current. Multi Feedback LDO regulator is proposed to implement the output voltage regulation, over voltage protection, over current limit, and adaptive communication limit sharing the single power transistor. This chip is implemented using 0.18 μm BCD technology with an active area of 4.0 mm × 4.0 mm. The maximum power conversion efficiency of the Active Rectifier is 94.2 % when the load current is 800 mA.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131555217","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
A wideband rectenna for 2.4 GHz-band RF energy harvesting 一种用于2.4 ghz波段射频能量收集的宽带整流天线
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498816
Yong Huang, N. Shinohara, Hiroshi Toromura
{"title":"A wideband rectenna for 2.4 GHz-band RF energy harvesting","authors":"Yong Huang, N. Shinohara, Hiroshi Toromura","doi":"10.1109/WPT.2016.7498816","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498816","url":null,"abstract":"This paper presents a wideband and efficient rectenna suitable for 2.4 GHz-band RF energy harvesting from wireless LAN/Wi-Fi or similar devices. We design a stacked patch antenna consisted of a driven patch and four parasitic patches. The proposed antenna performs well both in return loss and gain in the frequency band of 2.41~2.47 GHz which almost covers all channels of 2.4GHz-band wireless LAN. In the band of 2.41~2.47 GHz, the simulated return loss of proposed antenna is below -10 dB and the simulated gain is over 5 dBi. Furthermore, we design a rectifying circuit which also exhibits a high efficiency in the band of 2.41~2.47 GHz with the power level as low as -20 dBm. Especially, at 2.472 GHz, the measured efficiency of rectifier is 4.3%, 24.3%, 48.5%, 63% for different input powers of -30, -20, -10, 0 dBm, respectively.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131995811","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: 30
Analysis of electromagnetic field leaked from several Wireless Power Transfer Systems in large-scale model 几种大型模型无线电力传输系统的电磁场泄漏分析
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498768
Yoshihiro Kanasaki, Tatsunori Yui, K. Takagi, Masayuki Anada, H. Uno, Hironobu Watanabe, Y. Saito
{"title":"Analysis of electromagnetic field leaked from several Wireless Power Transfer Systems in large-scale model","authors":"Yoshihiro Kanasaki, Tatsunori Yui, K. Takagi, Masayuki Anada, H. Uno, Hironobu Watanabe, Y. Saito","doi":"10.1109/WPT.2016.7498768","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498768","url":null,"abstract":"An electromagnetic field leaked from WPT systems might cause a false operation of other electronic devices. We have measured and simulated it by using the WPT leakage emulator so far. In this paper, the electromagnetic field is evaluated on the assumption that several WPT systems are located in the residential house and operate simultaneously. It is shown that the simulated results coincide with the measured results approximately, and the validity of the simulation method is confirmed.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125349403","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
Method and system for wireless and single-conductor power and data transmission 无线和单导体电力和数据传输的方法和系统
2016 IEEE Wireless Power Transfer Conference (WPTC) Pub Date : 2016-05-05 DOI: 10.1109/WPT.2016.7498818
Susanna Vital de Campos de Freitas, A. Maunder, F. C. Domingos, P. Mousavi
{"title":"Method and system for wireless and single-conductor power and data transmission","authors":"Susanna Vital de Campos de Freitas, A. Maunder, F. C. Domingos, P. Mousavi","doi":"10.1109/WPT.2016.7498818","DOIUrl":"https://doi.org/10.1109/WPT.2016.7498818","url":null,"abstract":"This paper proposes and outlines a novel method for wirelessly transmitting power using a combination of inductive coupling and single conductor power transfer. The power is wirelessly transmitted from a source to a single conductor, using a double ended coil and a single ended coil respectively. From the conductor, the power is similarly transmitted to multiple receivers. The Qi standard is implemented, in order to guaranty the portability, reliability, and interoperability of the system.","PeriodicalId":113182,"journal":{"name":"2016 IEEE Wireless Power Transfer Conference (WPTC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123383951","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
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