Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556901
Ricardo Gonalves, N. Carvalho, P. Pinho
In this paper we propose a possible solution to increase the readability range of an inductive coupled based radio frequency identification (RFID) system. The solution is based on the introduction of a resonant printed spiral coil (PSC) in between the reader and the tag in order to enhance the magnetic field and therefore increase the detection range of the RFID reader. The results obtained proved this to be an effective technique, by more than doubling the readable range of the RFID system.
{"title":"Increasing the RFID readability range using wireless power transmission enhancements","authors":"Ricardo Gonalves, N. Carvalho, P. Pinho","doi":"10.1109/WPT.2013.6556901","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556901","url":null,"abstract":"In this paper we propose a possible solution to increase the readability range of an inductive coupled based radio frequency identification (RFID) system. The solution is based on the introduction of a resonant printed spiral coil (PSC) in between the reader and the tag in order to enhance the magnetic field and therefore increase the detection range of the RFID reader. The results obtained proved this to be an effective technique, by more than doubling the readable range of the RFID system.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125054474","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556903
T. Ishikawa, N. Shinohara
A SPS (Solar Power Station / Satellite) is a gigantic satellite designed as an electric power plant and transmits the electricity via microwave to a receiving site on the Earth by using a phased array antenna. In Japan, a panel structure SPS was proposed. The panel structure SPS is difficult to maintain flatness of transmission antenna surface. Thus, we study on a microwave power beam correction method. In this paper, we describe a PAC (Position and Angle Correction) method. The PAC method is one of the beam correction methods for SPS. In previous study, we considered the PAC method with pilot signal receiving points and disregarded the size of signal receiving points. Thus, we designed the signal receiving antenna and considered the panel module configurations for using the PAC method. Additionally, we simulated the pilot signal phase measurement errors which are caused by the surrounding antenna elements on the panel module. From the simulation, if the signal receiving antenna is not adjacent to other signal receiving antennas and the phase measurement errors are enough small to use the PAC method.
{"title":"Study on panel gradient estimation system for panel-structure solar power satellite/station","authors":"T. Ishikawa, N. Shinohara","doi":"10.1109/WPT.2013.6556903","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556903","url":null,"abstract":"A SPS (Solar Power Station / Satellite) is a gigantic satellite designed as an electric power plant and transmits the electricity via microwave to a receiving site on the Earth by using a phased array antenna. In Japan, a panel structure SPS was proposed. The panel structure SPS is difficult to maintain flatness of transmission antenna surface. Thus, we study on a microwave power beam correction method. In this paper, we describe a PAC (Position and Angle Correction) method. The PAC method is one of the beam correction methods for SPS. In previous study, we considered the PAC method with pilot signal receiving points and disregarded the size of signal receiving points. Thus, we designed the signal receiving antenna and considered the panel module configurations for using the PAC method. Additionally, we simulated the pilot signal phase measurement errors which are caused by the surrounding antenna elements on the panel module. From the simulation, if the signal receiving antenna is not adjacent to other signal receiving antennas and the phase measurement errors are enough small to use the PAC method.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114363261","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556912
Akiro Shimada, Yuki Ito, H. Uehara, T. Ohira
In this paper, we discuss the effect of the number of hops on the power division in wireless power transfer via magnetic resonance based on the electric circuit theory. First, a power division ratio (PDR) of single-hop power transfer to multiple receivers is addressed by using an equivalent circuit. The PDR of each receiver is shown to be inversely proportional to load resistances. Secondly, the PDR of multi-hop power transfer to multiple receivers is discussed focusing on the parity of the number of hops. Under the condition that a transmitter and intermediate couplers are arranged on an equal distance, it is needed to switch the control strategy of adjusting load resistance according to the parity of the number of hops on multi-hop power transfer to multiple receivers.
{"title":"Effect of hop counts on power division ratio in multi-hop power transfer via magnetic resonance","authors":"Akiro Shimada, Yuki Ito, H. Uehara, T. Ohira","doi":"10.1109/WPT.2013.6556912","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556912","url":null,"abstract":"In this paper, we discuss the effect of the number of hops on the power division in wireless power transfer via magnetic resonance based on the electric circuit theory. First, a power division ratio (PDR) of single-hop power transfer to multiple receivers is addressed by using an equivalent circuit. The PDR of each receiver is shown to be inversely proportional to load resistances. Secondly, the PDR of multi-hop power transfer to multiple receivers is discussed focusing on the parity of the number of hops. Under the condition that a transmitter and intermediate couplers are arranged on an equal distance, it is needed to switch the control strategy of adjusting load resistance according to the parity of the number of hops on multi-hop power transfer to multiple receivers.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129382418","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556883
L. Pierantoni, D. Mencarelli, F. Coccetti
The possibility of using graphene-based antennas is a core point in the development of high speed, multifunctional new wireless architecture, leading to a new generation of smart nano-systems for wireless communications, and wireless power transfer. In this work, we present a first analysis of the electromagnetic-quantum transport among the different graphene-based antennas. The former analysis is a building block for the design of a complete smart nanosystems for wireless communications at micro and mm-wave frequencies.
{"title":"Graphene-based wireless communications systems: Analysis of the EM-quantum transport of coupled nano-patch antennas","authors":"L. Pierantoni, D. Mencarelli, F. Coccetti","doi":"10.1109/WPT.2013.6556883","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556883","url":null,"abstract":"The possibility of using graphene-based antennas is a core point in the development of high speed, multifunctional new wireless architecture, leading to a new generation of smart nano-systems for wireless communications, and wireless power transfer. In this work, we present a first analysis of the electromagnetic-quantum transport among the different graphene-based antennas. The former analysis is a building block for the design of a complete smart nanosystems for wireless communications at micro and mm-wave frequencies.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131670472","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556895
S. Kawasaki
Wireless energy transfer and conversion is defined as the combination of wireless power transmission and energy harvesting/scavenging. The transfer and conversion powers are used to operate electric and RF/microwave circuits and mechanical equipment. In this paper, a category of the wireless energy transfer and conversion, an overview of development and application of RF/microwave power transmission and energy harvesting technologies are demonstrated.
{"title":"The green energy harvesting winds by the RF/microwave power transmission","authors":"S. Kawasaki","doi":"10.1109/WPT.2013.6556895","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556895","url":null,"abstract":"Wireless energy transfer and conversion is defined as the combination of wireless power transmission and energy harvesting/scavenging. The transfer and conversion powers are used to operate electric and RF/microwave circuits and mechanical equipment. In this paper, a category of the wireless energy transfer and conversion, an overview of development and application of RF/microwave power transmission and energy harvesting technologies are demonstrated.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127115170","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556887
R. Tseng, Bill von Novak, Sumukh Shevde, K. Grajski
The Alliance for Wireless Power (A4WP) Version 1.0 Baseline System Specification (BSS) is an interoperability specification for loosely-coupled (LC) wireless power transfer (WPT) systems that meet next-generation user experience and industrial design requirements as part of the vision of Ubiquitous Power for portable, hand-held, consumer electronic devices. This survey of the A4WP Version 1.0 BSS reviews an LC WPT reference model, power transmitting and power receiving unit device classification, power system interfaces and key parameters, the power control specification, the signaling specification, and the framework for certification and acceptance testing based on reference power transmitting and power receiving resonators. The selection of ISM band (6.78MHz) as the WPT operating frequency and ISM band (2.4GHz) for WPT management protocol via BluetoothLE is discussed.
{"title":"Introduction to the alliance for wireless power loosely-coupled wireless power transfer system specification version 1.0","authors":"R. Tseng, Bill von Novak, Sumukh Shevde, K. Grajski","doi":"10.1109/WPT.2013.6556887","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556887","url":null,"abstract":"The Alliance for Wireless Power (A4WP) Version 1.0 Baseline System Specification (BSS) is an interoperability specification for loosely-coupled (LC) wireless power transfer (WPT) systems that meet next-generation user experience and industrial design requirements as part of the vision of Ubiquitous Power for portable, hand-held, consumer electronic devices. This survey of the A4WP Version 1.0 BSS reviews an LC WPT reference model, power transmitting and power receiving unit device classification, power system interfaces and key parameters, the power control specification, the signaling specification, and the framework for certification and acceptance testing based on reference power transmitting and power receiving resonators. The selection of ISM band (6.78MHz) as the WPT operating frequency and ISM band (2.4GHz) for WPT management protocol via BluetoothLE is discussed.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115202320","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556907
Sai Kiran Oruganti, F. Bien
This paper presents the use of commercially available carbon fiber as a part of the transmitter and the receiver antenna for wireless energy transfer. The configuration of the antenna presented in this paper shows an optimum performance of -2.129 dB at 9.7 MHz operating frequency; distance between transmitter and receiver being 3 millimeters. Carbon fiber forms the bulk of the commercial vehicles, which can be put to effective use as a dielectric material for the flexible sheet like waveguides. Other applications could simply be smart windows, where power could be wirelessly transmitted from a solar cell and smart suits.
{"title":"Flexible wireless energy transfer systems by carbon fiber as a dielectric material: Study and experiments","authors":"Sai Kiran Oruganti, F. Bien","doi":"10.1109/WPT.2013.6556907","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556907","url":null,"abstract":"This paper presents the use of commercially available carbon fiber as a part of the transmitter and the receiver antenna for wireless energy transfer. The configuration of the antenna presented in this paper shows an optimum performance of -2.129 dB at 9.7 MHz operating frequency; distance between transmitter and receiver being 3 millimeters. Carbon fiber forms the bulk of the commercial vehicles, which can be put to effective use as a dielectric material for the flexible sheet like waveguides. Other applications could simply be smart windows, where power could be wirelessly transmitted from a solar cell and smart suits.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115820117","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556921
I. Awai, Y. Sawahara, T. Ishizaki
A WPT system based on coupled resonators makes use of the electric and magnetic couplings. Considering one can control the ratio of those couplings, it should be useful to reduce the electric coupling, since it is affected by the dielectric material that intrudes between the two resonators, resulting in the shift of operating frequency, deterioration of matching and increase of transfer loss. The present paper studies two methods to avoid them, that is, electric energy confinement by external lumped capacitor and by double layered coils. Both try to confine the electric energy of the resonators into a limited space and remove from the coupling space. Carrying out a comparative study, it concludes the latter is more desirable by the overall rating.
{"title":"Fabrication of a new high-performance WPT system by electric energy confinement","authors":"I. Awai, Y. Sawahara, T. Ishizaki","doi":"10.1109/WPT.2013.6556921","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556921","url":null,"abstract":"A WPT system based on coupled resonators makes use of the electric and magnetic couplings. Considering one can control the ratio of those couplings, it should be useful to reduce the electric coupling, since it is affected by the dielectric material that intrudes between the two resonators, resulting in the shift of operating frequency, deterioration of matching and increase of transfer loss. The present paper studies two methods to avoid them, that is, electric energy confinement by external lumped capacitor and by double layered coils. Both try to confine the electric energy of the resonators into a limited space and remove from the coupling space. Carrying out a comparative study, it concludes the latter is more desirable by the overall rating.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116985833","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556916
Shi Pu, H. Hui
A new method of using coil arrays at both the transmitter and receiver sides is introduced for wireless power transmission (WPT) employing the technique of mid-range strong magnetic resonant coupling. Dual two-coil arrays are designed as the WPT system, where one array is used for the power transmitter while the other array is applied for the power receiver. It is shown that a power transmission efficiency of well over 50% at a transmission separation of 50 cm can be achieved. This efficiency is much higher than the usual cases of not using coil arrays both on the transmitting and receiving sides. Also, the optimized values of load resistors connected to the receiver coil elements show that the proposed WPT system is especially suitable for charging batteries with very low internal resistances such as batteries in laptops and mobile phones.
{"title":"To improve wireless power transmission efficiency by using coil arrays","authors":"Shi Pu, H. Hui","doi":"10.1109/WPT.2013.6556916","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556916","url":null,"abstract":"A new method of using coil arrays at both the transmitter and receiver sides is introduced for wireless power transmission (WPT) employing the technique of mid-range strong magnetic resonant coupling. Dual two-coil arrays are designed as the WPT system, where one array is used for the power transmitter while the other array is applied for the power receiver. It is shown that a power transmission efficiency of well over 50% at a transmission separation of 50 cm can be achieved. This efficiency is much higher than the usual cases of not using coil arrays both on the transmitting and receiving sides. Also, the optimized values of load resistors connected to the receiver coil elements show that the proposed WPT system is especially suitable for charging batteries with very low internal resistances such as batteries in laptops and mobile phones.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117134198","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}
Pub Date : 2013-05-15DOI: 10.1109/WPT.2013.6556898
M. Aldrigo, D. Masotti, A. Costanzo, V. Rizzoli
In the field of renewable energy sources, the sun has rightly a predominant role and many techniques have been developed so far to exploit solar energy for power supply and heating. In this paper, we propose an in-depth investigation on a new solution to deploy THz sun radiation in the infrared (IR) region: an array of planar bow-tie antennas with misaligned arms is designed, and tunnel diodes are used to rectify THz power. A theoretical estimation of the overall performance is discussed, together with technological constraints and future researches.
{"title":"Numerical analysis of an innovative energy-harvesting system in the infrared region","authors":"M. Aldrigo, D. Masotti, A. Costanzo, V. Rizzoli","doi":"10.1109/WPT.2013.6556898","DOIUrl":"https://doi.org/10.1109/WPT.2013.6556898","url":null,"abstract":"In the field of renewable energy sources, the sun has rightly a predominant role and many techniques have been developed so far to exploit solar energy for power supply and heating. In this paper, we propose an in-depth investigation on a new solution to deploy THz sun radiation in the infrared (IR) region: an array of planar bow-tie antennas with misaligned arms is designed, and tunnel diodes are used to rectify THz power. A theoretical estimation of the overall performance is discussed, together with technological constraints and future researches.","PeriodicalId":143468,"journal":{"name":"2013 IEEE Wireless Power Transfer (WPT)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126334169","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}
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