Maximum Achievable Power Conversion Efficiency Obtained Through an Optimized Rectenna Structure for RF Energy Harvesting

Chen, Yen‐Sheng; Chiu, Chien‐Kuo

doi:10.1109/tap.2017.2682228

Cited by 117 publications

(50 citation statements)

References 63 publications

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“…The associated results are the centerpiece of this work, provided in Figure . The curves represent the theoretical limits of conversion efficiency at each operational frequency, offering more general results than those ones in a previous study, which only exhibits the maximum achievable average efficiency. Moreover, we plot the experimental results of the state‐of‐the‐art rectenna designs in Figure , comparing their performance to the theoretical limits.…”

Section: Upper Bound Of Conversion Efficiencymentioning

confidence: 76%

“…In addition, such maximum achievable efficiency of near‐field WPT has also been analyzed by using two‐port parameters and deriving a closed‐form analytic solution for the optimal load or performing numerical search for the optimal load under the transmitter‐diversity scheme . However, no clear direction has emerged to determine the performance limits of far‐field rectennas, and only a few recent efforts have addressed the optimal rectenna structure that has maximized conversion efficiency for low‐power WPT …”

Section: Introductionmentioning

confidence: 99%

“…Thus, the value of this article is to provide a performance benchmark for rectenna designers so that the conversion efficiency can be more thoroughly and systematically evaluated. This article is a follow‐on work over, which has attempted to establish the maximum average conversion efficiency; however, most of the studies aim at one single operational input power, and thus the validity and capability of is insufficient. Besides, has neither pointed out the design guidelines to achieve the performance limits nor provided potential approaches for enhancing the maximum efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…This article is a follow‐on work over, which has attempted to establish the maximum average conversion efficiency; however, most of the studies aim at one single operational input power, and thus the validity and capability of is insufficient. Besides, has neither pointed out the design guidelines to achieve the performance limits nor provided potential approaches for enhancing the maximum efficiency. In contrast, this article generalizes the results of maximum power conversion efficiency, lending the validity for every single input power.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Theoretical limits of rectifying efficiency for low-power wireless power transfer

Chen

Chiu

2017

Int J RF Microw Comput Aided Eng

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The theoretical limits of power conversion efficiency for near‐field wireless power transfer were derived in recent years, but the maximum achievable efficiency for low‐power and far‐field powering has not yet been characterized. In this paper, we derive the performance limits of rectifiers using diodes for input power ranging from −20 dBm to 0 dBm. These theoretical limits are verified via measurement and simulation, and experimental performance data from the literature are extracted to validate the established maximum efficiency. Moreover, we propose design guidelines to achieve such performance limits, clarifying the method for optimizing the rectifier circuitry and the associated parameters. We further show potential approaches for the enhancement of maximum conversion efficiency via analyzing the loss parameters of Schottky diodes. This work thus establishes the performance benchmark of low‐power rectifiers and provides useful guidelines for future rectenna development.

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Section: Upper Bound Of Conversion Efficiencymentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical limits of rectifying efficiency for low-power wireless power transfer

Chen

Chiu

2017

Int J RF Microw Comput Aided Eng

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“…Prior to it, complete illustration about the microwave antennas in RF energy harvesting are presented with complete design perspective. A comparative study along with performatory analysis of microwave antennas are presented in Table ; keeping intact with rectenna characteristics: operating frequency, realized gain, polarization diversity, input power levels, and RF‐to‐DC power conversion efficiency, which was not in the scope of review papers for RF energy harvesting available in the open literature. Technically, to pursue clear understanding about tradeoffs of modern RF systems; five different cases of planar antennas (monopole antennas) at different bands with reflector surfaces and integrated with rectifier circuits are designed, simulated and analyzed by using FDTD domain solver (CST microwave studio) and circuit solver (advanced design system).…”

Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Behera

Meher

Mishra

2020

Int J RF Microw Comput Aided Eng

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With the significant rise of low power embedded devices in various applications of both consumer and commercial usage, the surge for continuous power requirements has initiated promising research toward alternative sources of energy. It includes the domain of wireless power transmission, internet‐of‐things, wireless sensor nodes, machine‐to‐machine, and radio frequency identification. Thus, the overall scope of this review article is to witness microwave antennas and its implementation in RF energy harvesting system through ambient RF signals. For this reason, unified understanding of classical electromagnetism is needed; beginning with the fundamentals of RF transmission and the exploration of concepts such as Fraunhofer's Distance and Friis Transmission Equation. It is followed up by the analogy of dependency of parameters like circuit build‐up, conversion efficiencies and amount of power harvested, which is quite crucial from the rectifier point‐of‐view. For better improvisement in RF energy harvesting systems, five different cases of monopole antennas are explored with reflector surfaces such as PEC (perfect electrical conductor) and AMC (artificial magnetic conductor) integrated with the rectifier circuit. Implementation with wide diversity has proposed a generalized solution for achieving tradeoffs: polarization and pattern diversity with consistent system efficiency; leads to clean and sustainable energy for low power‐embedded devices.

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Rectenna Optimization Guidelines for Ambient Electromagnetic Energy Harvesting

Vandelle¹,

Hemour²,

Vuong³

et al. 2020

Wireless Power Transmission for Sustainable Electronics

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Maximum Achievable Power Conversion Efficiency Obtained Through an Optimized Rectenna Structure for RF Energy Harvesting

Cited by 117 publications

References 63 publications

Theoretical limits of rectifying efficiency for low-power wireless power transfer

Theoretical limits of rectifying efficiency for low-power wireless power transfer

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Rectenna Optimization Guidelines for Ambient Electromagnetic Energy Harvesting

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