Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055700
Quoc-Trinh Vo, Quang-Thang Duong, M. Okada
A compensation method has been proposed for three-coil inductive power transfer (IPT) to realize cooperative transmission with load-independent output voltages. However, the existing configuration has not considered the mutual coupling between the primary coil and the secondary coil, and for that reason it suffers from an efficiency degradation when significant cross coupling exists. This paper proposes a novel configuration to improve the efficiency while maintaining the constant voltage functionality for the cooperative IPT system. EM simulations and experiments verify effectiveness of the proposed scheme.
{"title":"Efficiency Improvement for Three-coil Cooperative Inductive Power Transfer Systems","authors":"Quoc-Trinh Vo, Quang-Thang Duong, M. Okada","doi":"10.1109/WPTC45513.2019.9055700","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055700","url":null,"abstract":"A compensation method has been proposed for three-coil inductive power transfer (IPT) to realize cooperative transmission with load-independent output voltages. However, the existing configuration has not considered the mutual coupling between the primary coil and the secondary coil, and for that reason it suffers from an efficiency degradation when significant cross coupling exists. This paper proposes a novel configuration to improve the efficiency while maintaining the constant voltage functionality for the cooperative IPT system. EM simulations and experiments verify effectiveness of the proposed scheme.","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":"130024591","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055555
Sei Mizojiri, K. Takagi, K. Shimamura, Shigeru Yokota, M. Fukunari, Y. Tatematsu, T. Saito
A 265 GHz rectenna was developed by microfabrication on Si wafer and then assessed using a 265 GHz gyrotron. Coplanar waveguide (CPW) has smaller transmission loss than Microstrip line (MSL) in the higher frequency band and high precision circuit patterns can be fabricated on the same plane by microfabrication. A coplanar slot antenna was designed and a gain of 6.14 dBi was obtained by simulation. The input power was estimated by application of the beam profile measured using an IR camera and the beam output power. As a result, the maximum DC output power and rectenna power density (DC output power per unit area) were 0.5 mW, 0.09 kW/m2 with 266 mV output voltage and $150 Omega$ DC load. The RF-DC conversion efficiency was obtained as 0.07 % with 644 mW input power. This work is the cutting edge of high-frequency operation in a microwave CPW type rectenna.
{"title":"Demonstration of Sub-Terahertz Coplanar Rectenna using 265 GHz Gyrotron","authors":"Sei Mizojiri, K. Takagi, K. Shimamura, Shigeru Yokota, M. Fukunari, Y. Tatematsu, T. Saito","doi":"10.1109/WPTC45513.2019.9055555","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055555","url":null,"abstract":"A 265 GHz rectenna was developed by microfabrication on Si wafer and then assessed using a 265 GHz gyrotron. Coplanar waveguide (CPW) has smaller transmission loss than Microstrip line (MSL) in the higher frequency band and high precision circuit patterns can be fabricated on the same plane by microfabrication. A coplanar slot antenna was designed and a gain of 6.14 dBi was obtained by simulation. The input power was estimated by application of the beam profile measured using an IR camera and the beam output power. As a result, the maximum DC output power and rectenna power density (DC output power per unit area) were 0.5 mW, 0.09 kW/m2 with 266 mV output voltage and $150 Omega$ DC load. The RF-DC conversion efficiency was obtained as 0.07 % with 644 mW input power. This work is the cutting edge of high-frequency operation in a microwave CPW type rectenna.","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":"132961570","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055584
M. Poveda-García, J. Gómez-Tornero
The beaming efficiency of a radiative wireless power transfer (WPT) system based on 1-D frequency-scanned antennas, to power a low-energy wireless sensor network (WSN), is studied in this work. The study is focused on the 16 frequency channels of the Zigbee protocol in the 2.45 GHz band. The beaming efficiency is analysed for different antenna lengths and number of frequency Zigbee channels, showing that using longer, more directive antennas, the coverage for the WSN can be improved, but more frequency channels are needed to achieve the same beaming efficiency than using shorter antennas, which increases the system complexity.
{"title":"Beaming Efficiency of 1-D Frequency-Scanned Based Radiative WPT System for Wireless Sensor Networks","authors":"M. Poveda-García, J. Gómez-Tornero","doi":"10.1109/WPTC45513.2019.9055584","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055584","url":null,"abstract":"The beaming efficiency of a radiative wireless power transfer (WPT) system based on 1-D frequency-scanned antennas, to power a low-energy wireless sensor network (WSN), is studied in this work. The study is focused on the 16 frequency channels of the Zigbee protocol in the 2.45 GHz band. The beaming efficiency is analysed for different antenna lengths and number of frequency Zigbee channels, showing that using longer, more directive antennas, the coverage for the WSN can be improved, but more frequency channels are needed to achieve the same beaming efficiency than using shorter antennas, which increases the system complexity.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"29 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":"132598760","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055656
G. Monti, L. Corchia, L. Tarricone
This paper presents an inductive resonant wireless power transfer link (WPT) which has been optimized for recharging a pulse generator implanted in the chest. The proposed link consists of two capacitively loaded circular loops and appropriate matching networks. The proposed design approach exhibits improved performance with respect to possible misalignments between the transmitting and the receiving loops. From numerical data, the proposed link has an efficiency of about 67 % when the two resonators are aligned and it remains almost stable for a lateral misalignment lower than 4 mm.
{"title":"Pacemaker Recharge Through Inductive Resonant Wireless Power Transfer","authors":"G. Monti, L. Corchia, L. Tarricone","doi":"10.1109/WPTC45513.2019.9055656","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055656","url":null,"abstract":"This paper presents an inductive resonant wireless power transfer link (WPT) which has been optimized for recharging a pulse generator implanted in the chest. The proposed link consists of two capacitively loaded circular loops and appropriate matching networks. The proposed design approach exhibits improved performance with respect to possible misalignments between the transmitting and the receiving loops. From numerical data, the proposed link has an efficiency of about 67 % when the two resonators are aligned and it remains almost stable for a lateral misalignment lower than 4 mm.","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":"115649511","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055681
Xian Zhang, Jie Wang, Ming Xue, Yang Li, Qingxin Yang
Due to the dynamic wireless charging of electric vehicle has the characteristics of large offset and fast moving speed, the control of the system and the choice of compensation mode are more important. In view of the problem that the original side control in the dynamic wireless charging system of electric vehicles is susceptible to the change of the coupling parameters of the auxiliary side, this paper explores the transmission characteristics of double LCC compensation mode in the dynamic wireless charging system from the perspective of compensation mode. Through mathematical modeling and simulation analysis, the double LCC compensation mode not only has constant current output characteristics, but also has stronger stability for the dynamic wireless charging system of electric vehicles. Finally, the constant current output and the Strong stability characteristics of the double LCC structure are verified by comparing the electrical parameters of the double LCC structure and the traditional compensation mode applied in the dynamic wireless charging system for electric vehicles.
{"title":"Reserch on Dynamic Wireless Charging of Electric Vehicle Based on Double LCC Compensation Mode","authors":"Xian Zhang, Jie Wang, Ming Xue, Yang Li, Qingxin Yang","doi":"10.1109/WPTC45513.2019.9055681","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055681","url":null,"abstract":"Due to the dynamic wireless charging of electric vehicle has the characteristics of large offset and fast moving speed, the control of the system and the choice of compensation mode are more important. In view of the problem that the original side control in the dynamic wireless charging system of electric vehicles is susceptible to the change of the coupling parameters of the auxiliary side, this paper explores the transmission characteristics of double LCC compensation mode in the dynamic wireless charging system from the perspective of compensation mode. Through mathematical modeling and simulation analysis, the double LCC compensation mode not only has constant current output characteristics, but also has stronger stability for the dynamic wireless charging system of electric vehicles. Finally, the constant current output and the Strong stability characteristics of the double LCC structure are verified by comparing the electrical parameters of the double LCC structure and the traditional compensation mode applied in the dynamic wireless charging system for electric vehicles.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"160 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":"124179351","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055642
José Antonio Estrada, Eric Kwiatkowski, Ana López-Yela, Mónica Borgoñós-García, D. Segovia-Vargas, T. Barton, Z. Popovic
This paper presents 16 and 81-element broadband rectenna arrays screen printed on a cotton tee-shirt for harvesting $4-130 mu mathrm{W}/text{cm}^{2}$ power densities between 2–4 GHz. The antenna is a self-complementary tightly-coupled bow-tie array with a period of about $lambda_{mathrm{O}}/6$ at the highest frequency. Each array element feed is connected to a packaged Schottky diode using silver paint. Full-wave antenna simulations are performed with specific tissue electrical parameters for the torso, as well as for a body phantom. The diodes impedance as a function of dc load and input power density is analyzed using source-pull harmonic-balance simulations. Measurements using a water-filled phantom show up to $mathrm{P}_{text{DC}=}10 mumathrm{W}$ for incident power densities of $4 mumathrm{W}/text{cm}^{2}$ at the center of the band, with a DC load of $mathrm{R}_{text{DC}}=2mathrm{k}Omega$.
本文介绍了16和81单元宽带天线阵列屏幕印刷在棉质t恤上，用于收集$4-130 mu mathrm{W}/text{cm}^{2}$功率密度在2-4 GHz之间。天线为自互补紧密耦合领结阵列，在最高频率时周期约为$lambda_{mathrm{O}}/6$。每个阵列元件馈电都用银漆连接到封装的肖特基二极管。全波天线模拟进行了特定的组织电参数的躯干，以及身体的幻影。利用源拉谐波平衡仿真分析了二极管阻抗随直流负载和输入功率密度的变化规律。使用充满水的模体测量显示，在带的中心入射功率密度为$4 mumathrm{W}/text{cm}^{2}$，直流负载为$mathrm{R}_{text{DC}}=2mathrm{k}Omega$，最高可达$mathrm{P}_{text{DC}=}10 mumathrm{W}$。
{"title":"An Octave Bandwidth RF Harvesting Tee-Shirt","authors":"José Antonio Estrada, Eric Kwiatkowski, Ana López-Yela, Mónica Borgoñós-García, D. Segovia-Vargas, T. Barton, Z. Popovic","doi":"10.1109/WPTC45513.2019.9055642","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055642","url":null,"abstract":"This paper presents 16 and 81-element broadband rectenna arrays screen printed on a cotton tee-shirt for harvesting $4-130 mu mathrm{W}/text{cm}^{2}$ power densities between 2–4 GHz. The antenna is a self-complementary tightly-coupled bow-tie array with a period of about $lambda_{mathrm{O}}/6$ at the highest frequency. Each array element feed is connected to a packaged Schottky diode using silver paint. Full-wave antenna simulations are performed with specific tissue electrical parameters for the torso, as well as for a body phantom. The diodes impedance as a function of dc load and input power density is analyzed using source-pull harmonic-balance simulations. Measurements using a water-filled phantom show up to $mathrm{P}_{text{DC}=}10 mumathrm{W}$ for incident power densities of $4 mumathrm{W}/text{cm}^{2}$ at the center of the band, with a DC load of $mathrm{R}_{text{DC}}=2mathrm{k}Omega$.","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":"124278953","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055592
Young-Pyo Hong, Jung-Il Park, N. Kang, Dong-Joon Lee
In this paper, a field-probing receiver that can be used to measure radiating fields from the phased-array transmitter which generates 1-kW peak pulsed output is presented. It consists of polarization controller, optical circulator, optical amplifier, photodiode, low-noise amplifier, distributed feedback laser diode, and optical power meter. The probe consists of an optical interferometric waveguide on a lithium niobate electro-optic (EO) substrate in the folded Mach-Zehnder (MZ) style. On the waveguide, multi-electrode array is fabricated to enhance the EO modulation depth of the MZ scheme. The electrodes serve as a micro-dipole antenna which electrically induces electric field onto the optical waveguide. The probe is fairly transparent to electromagnetic fields to minimize the level of field invasiveness, and it is fabricated with compact dimensions of 10 mm x 3 mm x 1 mm. The proposed electric probe has been experimentally validated by electric field measurements on a phase-array transmitter with a sensitivity enhancement of about 14 dB in 12 GHz compared to a commercial electric probe.
{"title":"Photonic-Assisted Field-Probing Receiver for Kilowatt Peak-Power Wideband Radiative Wireless Transmitter","authors":"Young-Pyo Hong, Jung-Il Park, N. Kang, Dong-Joon Lee","doi":"10.1109/WPTC45513.2019.9055592","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055592","url":null,"abstract":"In this paper, a field-probing receiver that can be used to measure radiating fields from the phased-array transmitter which generates 1-kW peak pulsed output is presented. It consists of polarization controller, optical circulator, optical amplifier, photodiode, low-noise amplifier, distributed feedback laser diode, and optical power meter. The probe consists of an optical interferometric waveguide on a lithium niobate electro-optic (EO) substrate in the folded Mach-Zehnder (MZ) style. On the waveguide, multi-electrode array is fabricated to enhance the EO modulation depth of the MZ scheme. The electrodes serve as a micro-dipole antenna which electrically induces electric field onto the optical waveguide. The probe is fairly transparent to electromagnetic fields to minimize the level of field invasiveness, and it is fabricated with compact dimensions of 10 mm x 3 mm x 1 mm. The proposed electric probe has been experimentally validated by electric field measurements on a phase-array transmitter with a sensitivity enhancement of about 14 dB in 12 GHz compared to a commercial electric probe.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"100 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":"116015623","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055595
Kosuke Yoshida, Norifumi Kashiyama, Miho Kanemoto, Shogo Umemoto, Hisashi Nishikawa, A. Tanaka, T. Douseki
We have developed a wireless power transfer scheme with a dual-polarization-switching cantenna that varies the supply power of two adjacent LED accessories with ultra-small rectennas and changes the light intensity of the LEDs. Such operation is enabLED through the use of a dual-polarization-switching cantenna composed of two antennas embedded in the can so that radiated waves are orthogonally polarized. Each antenna enables high-power emission compared with a dipole antenna, and the difference between the gains of the antennas becomes small. In this way, switching between the antennas makes it possible to vary the supply power to the LED accessories. We fabricated a 2.45-GHz cantenna composed of two monopole antennas 8.5 cm in length and a can with a diameter of 12 cm and height of 20.5 cm. The antenna gains of the horizontal and vertical antennas were 12.2 dBi and 0.4 dBi, respectively. The difference of the two gains was suppressed within 12 dB. We also fabricated a wireless power transfer system that consists of a transmitter and LED false nails with an ultra-small rectenna. Experimental results show that our system can vary the luminous intensity of the LEDs in false nails in time to the music of a CD.
{"title":"2.45-GHz Wireless Power Transmitter with Dual-Polarization-Switching Cantenna for LED Accessories","authors":"Kosuke Yoshida, Norifumi Kashiyama, Miho Kanemoto, Shogo Umemoto, Hisashi Nishikawa, A. Tanaka, T. Douseki","doi":"10.1109/WPTC45513.2019.9055595","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055595","url":null,"abstract":"We have developed a wireless power transfer scheme with a dual-polarization-switching cantenna that varies the supply power of two adjacent LED accessories with ultra-small rectennas and changes the light intensity of the LEDs. Such operation is enabLED through the use of a dual-polarization-switching cantenna composed of two antennas embedded in the can so that radiated waves are orthogonally polarized. Each antenna enables high-power emission compared with a dipole antenna, and the difference between the gains of the antennas becomes small. In this way, switching between the antennas makes it possible to vary the supply power to the LED accessories. We fabricated a 2.45-GHz cantenna composed of two monopole antennas 8.5 cm in length and a can with a diameter of 12 cm and height of 20.5 cm. The antenna gains of the horizontal and vertical antennas were 12.2 dBi and 0.4 dBi, respectively. The difference of the two gains was suppressed within 12 dB. We also fabricated a wireless power transfer system that consists of a transmitter and LED false nails with an ultra-small rectenna. Experimental results show that our system can vary the luminous intensity of the LEDs in false nails in time to the music of a CD.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"34 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":"122132187","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055625
Semion Belau, Susanna Vital de Campos de, Fabiano Cezar Domingos, R. Mirzavand, P. Mousavi
This paper presents the performance of a novel capacitive resonant wireless power transmission (WPT) system as a communication link. To test the system's ability to transmit data, a channel model of the implemented system was created in MATLAB, along with a non-coherent receiver model, and used in a simulation to obtain the bit error rate by passing 10,000 on-off keyed symbols through it. Because the system utilizes resonant coupling, which is detrimental to the ability to communicate data due to the inherent narrowband nature of resonance, both maximum power transfer and maximum data rate cannot be achieved simultaneously. As a result, modified Miller encoding (which is used in RFID) was used in the simulation to encode the data and the data rate was slowed down to improve the bit error rate. Both simulations have shown that the WPT system has comparable performance to an additive white Gaussian noise channel given an appropriate data rate.
{"title":"Data Communication Over a Novel Capacitive Resonant Wireless Power Transmission System","authors":"Semion Belau, Susanna Vital de Campos de, Fabiano Cezar Domingos, R. Mirzavand, P. Mousavi","doi":"10.1109/WPTC45513.2019.9055625","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055625","url":null,"abstract":"This paper presents the performance of a novel capacitive resonant wireless power transmission (WPT) system as a communication link. To test the system's ability to transmit data, a channel model of the implemented system was created in MATLAB, along with a non-coherent receiver model, and used in a simulation to obtain the bit error rate by passing 10,000 on-off keyed symbols through it. Because the system utilizes resonant coupling, which is detrimental to the ability to communicate data due to the inherent narrowband nature of resonance, both maximum power transfer and maximum data rate cannot be achieved simultaneously. As a result, modified Miller encoding (which is used in RFID) was used in the simulation to encode the data and the data rate was slowed down to improve the bit error rate. Both simulations have shown that the WPT system has comparable performance to an additive white Gaussian noise channel given an appropriate data rate.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"59 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":"127422104","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 : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055669
F. Pereira, R. Correia, N. Carvalho
This work present a chipless strain gauge sensor based in conductive material responsive to deformations. The material is characterized and adapted to match the maximum absorption and reflection possible, creating an accurate and reliable chipless sensor. The developed sensor was tested as (i) occupancy sensor (ii) respiratory rate sensor and (iii) finger folding sensor, which presented very promising results.
{"title":"Chipless Backscatter for Vital E-Health Sensing","authors":"F. Pereira, R. Correia, N. Carvalho","doi":"10.1109/WPTC45513.2019.9055669","DOIUrl":"https://doi.org/10.1109/WPTC45513.2019.9055669","url":null,"abstract":"This work present a chipless strain gauge sensor based in conductive material responsive to deformations. The material is characterized and adapted to match the maximum absorption and reflection possible, creating an accurate and reliable chipless sensor. The developed sensor was tested as (i) occupancy sensor (ii) respiratory rate sensor and (iii) finger folding sensor, which presented very promising results.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"2 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":"129067021","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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