Far-Field Wireless Power Harvesting: Nonlinear Modeling, Rectenna Design, and Emerging Applications

Gu, Xiaoqiang; Hemour, Simon; Wu, Ke

doi:10.1109/jproc.2021.3127930

Cited by 62 publications

(38 citation statements)

References 158 publications

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“…Wireless power transmission (WPT), also known as wireless power transfer, is of great concern due to its potential applications, and flexible charging system [1][2][3][4]. A WPT system is essentially defined as a system that can efficiently transmits electric power from one point to another through the space or earth's atmosphere without using wires [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Since then, researchers have introduced various techniques for the WPT systems, such as microwave technology, lasers technology, resonant inductive coupling technology, and so on. In general, these WPT techniques can be classified into two categories based on the transmission range: near-field and far-field WPT systems [3]. The range of near-field WPT systems are usually within the wavelength of the transmitter antenna, whereas the far-field WPT systems are aimed to deliver power up to several hundred kilometers [1,3].…”

Section: Introductionmentioning

confidence: 99%

“…In general, these WPT techniques can be classified into two categories based on the transmission range: near-field and far-field WPT systems [3]. The range of near-field WPT systems are usually within the wavelength of the transmitter antenna, whereas the far-field WPT systems are aimed to deliver power up to several hundred kilometers [1,3]. Although near-field WPT systems based on inductive/resonant coupling have been developed with some degree of success, far-field WPT system faces significant challenges in practical implementation [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…The range of near-field WPT systems are usually within the wavelength of the transmitter antenna, whereas the far-field WPT systems are aimed to deliver power up to several hundred kilometers [1,3]. Although near-field WPT systems based on inductive/resonant coupling have been developed with some degree of success, far-field WPT system faces significant challenges in practical implementation [1][2][3]. Some recent works, with novel concepts and structures, on near-field WPT systems can be found in [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Some recent works, with novel concepts and structures, on near-field WPT systems can be found in [9][10][11]. The application of far-field WPT system is often limited by its long transmission range, high cost and low efficiency [1,3]. Generally, a far-field WPT system is essentially composed of a transmitting antenna, and a receiver, also known as rectenna.…”

Section: Introductionmentioning

confidence: 99%

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Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

et al. 2022

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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.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

et al. 2022

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Performance evaluation of nonlinear energy scavenging overlay networks

Le-Thanh

Ho-Van

2022

Int J Communication

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This paper investigates a nonlinear energy scavenging overlay network (NLESON) wherein a primary source (PS) communicates with a primary destination (PD) probably under aid of a secondary source (SS) who communicates with a secondary destination (SD). SS is a power-constrained device, and thence, its operation relies on energy harvested by a practical nonlinear energy scavenger. To support PS and exploit the harvested energy at most, SS adaptively switches between single and superposition modes where the single mode allows SS to transmit solely its signal with the entire harvested energy and the superposition mode asks SS to transmit both-its signal and amplified primary signal-with different power fractions. Moreover, for increasing the probability of successfully decoding primary signal at PD and SD, which then reduces considerably primary interference on secondary signal in the superposition mode, we leverage both direct channels (PS-PD and PS-SD) and apply both signal combining paradigms (maximum ratio combining and selection combining).The outage/throughput performance of the NLESON is assessed quickly through the proposed closed-form expressions over κ À μ shadowed fading channels. Various results exposed the effectiveness of the aforementioned solutions for the NLESON and their flexibility in controlling system performance. K E Y W O R D Samplify-and-forward, direct channel, feedback, nonlinear energy scavenging, overlay networks, shadowed fading and motivationsAdvanced communication networks (viz., and Fifth-Generation [5G]) serve a vast quantity of users and hence pressuring significantly communication infrastructure in supplying adequately bandwidth and power. [1][2][3][4] Such a circumstance stimulates researches on initiatives to utilize energy and spectrum efficiently.On one hand, the spectrum can be exploited efficiently with the cognitive radio technology, which enables secondary users (SUs) to opportunistically transmit on the spectrum of primary users (PUs). Toward this end, SUs can operate with underlay, overlay, and interweave paradigms. 5 In both the overlay and underlay paradigms, PUs and SUs operate simultaneously while in the interweave one, SUs operate only when PUs are idle. Nevertheless, the underlay and overlay paradigms are different in that the former controls the transmit power of SUs such that the interference they induce

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DQNOCHN: Design of an Efficient Dyna Q Network for Enhancing Onboard and Offboard Charging Performance of Energy Harvesting Networks

Lal

2024

Lecture Notes in Networks and Systems

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Far-Field Wireless Power Harvesting: Nonlinear Modeling, Rectenna Design, and Emerging Applications

Cited by 62 publications

References 158 publications

Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission

Performance evaluation of nonlinear energy scavenging overlay networks

DQNOCHN: Design of an Efficient Dyna Q Network for Enhancing Onboard and Offboard Charging Performance of Energy Harvesting Networks

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