On the design of clustered planar phased arrays for wireless power transmission

Moriyama, Toshifumi; Poli, Lorenzo; Rocca, Paolo

doi:10.1587/elex.12.20150028

Cited by 13 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To quantitatively describe the performance of conventional WPT systems, BCE and the power transfer efficiency are given as [30][31][32][36][37][38] BCE(t, r) P Ψ{θ,ϕ}…”

Section: Fundamentals Of Fda and Wptmentioning

confidence: 99%

Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

et al. 2022

View full text Add to dashboard Cite

Wireless power transfer (WPT) is a well-known problem, and has received wide attention in the next generation industrial applications and consumer electronics. On the other hand, frequency diverse array (FDA) is a new concept with the ability to generate a range-angle dependent beampattern. Therefore, some researchers are engaged in designing WPT systems based on the FDA framework (FDA-WPT) instead of phased arrays. Unlike phased arrays, the FDA beampattern is time-variant. Therefore, existing beam collection efficiency models based on the phased array are not suitable for the FDA-WPT system. More importantly, the time-variant property of FDAs is usually ignored in the literature, and the system configuration of the target area where the power-harvesting end is located does not conform to the actual WPT scenario. In this paper, we derive and present accurate models of the FDA-WPT system. The power transfer performance of the corrected FDA-WPT system is then compared with the phased array based WPT system. Simulation results demonstrate that time-variant consideration in the FDA-WPT model causes difficulty in controlling the main beam direction to focus the power. The accurate FDA-WPT is theoretically investigated, and numerical simulations are implemented to validate the theoretical analysis.

show abstract

“…To quantitatively describe the performance of conventional WPT systems, BCE and the power transfer efficiency are given as [30][31][32][36][37][38] BCE(t, r) P Ψ{θ,ϕ}…”

Section: Fundamentals Of Fda and Wptmentioning

confidence: 99%

Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Due to the high requirements adopts a high-efficiency-phased array, which is convenient to control the beam pointing in real time [2,20,21]. Many studies have been devoted to designing the excitation distribution to maximize BCE in ideal array [22,23,24,25,26,27]. However, in actual engineering, BCE still needs to consider the influence of array structure, element position errors and excitation errors.…”

Section: Introductionmentioning

confidence: 99%

An analytical model of transmitting arrays with excitation perturbations for microwave power transmission

Zhang

Lou

Wang

et al. 2022

IEICE Electron. Express

View full text Add to dashboard Cite

An analytical model is proposed to calculate the performance on beam collecting efficiency (BCE) of transmitting arrays with excitation errors for microwave power transmission (MPT). Due to the inconsistent output of power amplifiers and the uncertainty of the joint loss of radio frequency (RF) device, the small perturbations will be brought into excitation amplitudes and phases, which will decrease the BCE. This analytical model involves the use of a Taylor series expansion to account for small perturbations in the excitation errors. The mathematical model between the statistical information of excitation perturbations and BCE is directly established. To fully prove the accuracy of the given model, numerous random samples will be used to compare the results of the proposed model and Monte Carlo simulation (MCS). Compared with the MCS, the proposed model does not require much-repeated calculation. The proposed method can be applied at the antenna design stage to effectively evaluate the effect of excitation perturbations on the BCE.

show abstract

“…The long-range and high efficiency wireless power transmission (WPT) is a promising technology for a wide range of applications in many fields [1], and it is one of the feasible technologies for the solar satellite [2]. Different from other wireless power transfer technologies using near-field coupling or laser beaming, WPT based on radio-frequency (RF) has certain advantages such as the longer transmission distance [3]. In general, there are two important components in a RF-based WPT system that are the transmitting antenna and the rectifying antenna.…”

Section: Introductionmentioning

confidence: 99%

“…The transmission module of a WPT system can use an antenna array to generate a narrow power beam with lower sidelobe, to make most of the energy focus on the receiving direction, thereby improving the transmission distance and the efficiency. However, power pattern synthesis of an antenna array is a complex non-linear problem [3]. Moreover, there is a trade-off between the sidelobe and the mainlobe of the power pattern, and this means that the mainlobe beamwidth may be extended while only considering to reduce the sidelobe, thereby causing the decreased energy transmission efficiency.…”

Section: Introductionmentioning

confidence: 99%

Suppressing Sidelobe Level of the Planar Antenna Array in Wireless Power Transmission

et al. 2019

View full text Add to dashboard Cite

The power pattern synthesis, as well as the sidelobe level (SLL) suppression of the planar antenna arrays for the wireless power transmission is investigated. An improved chicken swarm optimization (ICSO) algorithm is proposed for reducing the maximum SLL of the power pattern. ICSO introduces the global search, the local search, and the duplicate solution removing operators to enhance the accuracy and the convergence rate of the conventional CSO algorithm, thereby making it suitable for the power pattern optimizations. Simulations are conducted to verify the performance of the proposed algorithm, and the results show that ICSO obtains the lowest maximum SLL compared with other algorithms. Moreover, the power pattern performances of different algorithms are tested by the electromagnetic simulations, and the results show that the proposed ICSO has the best optimization ability. INDEX TERMS Wireless power transmission, power pattern, energy beamforming, sidelobe level, chicken swarm optimization. III. SYSTEM MODEL, ARRAY FACTOR AND PROBLEM DESCRIPTION A. SYSTEM MODEL AND ARRAY FACTOR GUOJUN SHEN received the B.S. degree in computer science from Jilin University, China, in 2015, where he is currently pursuing the M.S. degree in computer science. His research interests include wireless communication and optimizations. YANHENG LIU received the M.Sc. and Ph.D. degrees in computer science from Jilin University, China, where he is currently a Professor. His primary research interests include network security, network management, mobile computing network theory, and applications. GENG SUN (S'17) received the B.S. degree in communication engineering from Dalian Polytechnic University, in 2007, and the Ph.D. degree in computer science and technology from Jilin University, in 2018. He was a Visiting Researcher with the School of Electrical and Computer Engineering, Georgia Institute of Technology, USA. He currently holds a Postdoctoral position with Jilin University. His research interests include wireless sensor networks, antenna arrays, collaborative beamforming, and optimizations. TINGTING ZHENG received the B.S. degree in computer science from Jilin University, China, in 2017, where she is currently pursuing the Ph.D. degree in computer science. Her research interests include wireless communications and optimizations. XU ZHOU received the M.S. degree from Northeast Normal University, in 2013, and the Ph.D. degree from Jilin University, in 2016, where she currently holds a Postdoctoral position. Her research interests include intelligent algorithms, data mining, and complex network analysis. AIMIN WANG received the Ph.D. degree in communication and information system from Jilin University, where he is currently an Associate Professor. His research interests include wireless sensor networks and QoS for multimedia transmission.

show abstract

On the design of clustered planar phased arrays for wireless power transmission

Cited by 13 publications

References 14 publications

Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

An analytical model of transmitting arrays with excitation perturbations for microwave power transmission

Suppressing Sidelobe Level of the Planar Antenna Array in Wireless Power Transmission

Contact Info

Product

Resources

About