Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055538
NgocDuc Au, C. Seo, K. Park, Seungmo Hong
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 %.
为了扩大医疗植入通信服务(MICS)频段能量采集的输入功率范围和提高射频灵敏度，在403mhz整流电路中采用了高质量匹配网络。在此设计中，在一对并联电容之间放置一个有限卸载Q系列电感器，以提高阻抗匹配网络的整体负载Q因子。采用块状元件，整流器的紧凑尺寸为1.4 cm x 0.8 cm，适合于人体组织中的医疗植入装置。紧凑尺寸的整流器具有测量效率$(eta)$，其中$eta$高于50.1%的输入功率范围从-8.1 dBm (RF灵敏度)到11.5 dBm，因此，输入功率范围为19.6 dB。在5 dBm时，峰值效率为68.1%。
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055566
L. Botler, K. Diwold, Kay Romer
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055692
S. Yoshida, K. Nishikawa, S. Kawasaki
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055695
Fabiano Cezar Domingos, Susanna Vital de Campos de Freitas, R. Mirzavand, P. Mousavi
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055667
Yujun Shin, Jaehyoung Park, Haerim Kim, Bumjin Park, Jongwook Kim, Chanjun Park, Seungyoung Ahn
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055594
Kyungtae Kim, Ji-Woong Choi
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055537
Heng Wah Ho, W. W. Lau
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055556
Pablo Pérez-Nicoli, F. Silveira
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055563
C. M. de Miranda, S. F. Pichorim
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.
{"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}
Pub Date : 2019-06-01DOI: 10.1109/WPTC45513.2019.9055540
K. Gangwar, J. Tissier
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).
{"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：