A Compact Frequency Reconfigurable Rectenna for 5.2- and 5.8-GHz Wireless Power Transmission

Lu, Ping; Yang, Xue‐Song; Li, Jialin; Wang, Bing‐Zhong

doi:10.1109/tpel.2014.2379588

Cited by 86 publications

(44 citation statements)

References 8 publications

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“…However, the tradeoffs are low overall efficiency and large aperture. In [32], antennas with a resonance frequency of 4.9 and 5.9 GHz were designed with PCEs of 65.2 and 64.8%, respectively. Further work by Lu et al [26] on polarization antennas supports the assertion that expanding the bandwidth of an antenna leads to increasing the amount of power harvested.…”

Section: Antenna/rectenna Designmentioning

confidence: 99%

RF power harvesting: a review on designing methodologies and applications

Tran

Cha

Park

2017

Micro and Nano Syst Lett

235

146

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Wireless power transmission was conceptualized nearly a century ago. Certain achievements made to date have made power harvesting a reality, capable of providing alternative sources of energy. This review provides a summ ary of radio frequency (RF) power harvesting technologies in order to serve as a guide for the design of RF energy harvesting units. Since energy harvesting circuits are designed to operate with relatively small voltages and currents, they rely on state-of-the-art electrical technology for obtaining high efficiency. Thus, comprehensive analysis and discussions of various designs and their tradeoffs are included. Finally, recent applications of RF power harvesting are outlined.

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Section: Antenna/rectenna Designmentioning

confidence: 99%

RF power harvesting: a review on designing methodologies and applications

Tran

Cha

Park

2017

Micro and Nano Syst Lett

235

146

View full text Add to dashboard Cite

show abstract

“…Different MPT systems have chosen different operation frequencies, such as 2.45, 5.8 GHz, and so on. Consequently, multi‐band rectennas or frequency reconfigurable rectennas can be applied in different MPT systems with different operating frequencies . In this article, we investigate rectenna arrays consist of frequency reconfigurable rectenna element, which contains a reconfigurable receiving antenna and a reconfigurable rectifying circuit, as shown in Figure .…”

Section: Reconfigurable Rectenna Array Structurementioning

confidence: 99%

Reconfigurable rectenna array design with mutual coupling analysis

Yang

Wang

2018

Micro & Optical Tech Letters

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This article introduces design of two frequency reconfigurable rectenna arrays, which are in direct current (DC) combining and in radio frequency (RF) combining configurations, respectively, with the mutual coupling analysis. We compare the performances in the conversion efficiency of the two arrays. For the mutual coupling analysis, the coupling coefficient matrix and the active DC patterns of the two rectenna arrays are calculated. By analyzing the mutual coupling, we find that the rectenna array in RF combining can achieve higher and more stable output DC power than that in DC combining. When the receiving antenna element spaces about 0.46λ0 and the rectifying circuit element spaces 0.17λ0, the proposed two‐element reconfigurable rectenna array in RF combining configuration achieves measured conversion efficiencies of 69.1% and 64.2% at two operation frequency modes, while simulated efficiency in DC configuration achieves 70.3% and 53.2% when the rectenna element spaces 0.38λ0.

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“…Hence, seeking for other techniques to extend the range of power transfer, the RF‐based WPT can be proposed to be one of the potential candidate in virtue of the principle of electromagnetic radiation that antenna radiates electromagnetic energy in the far field and produces high frequency currents on its surface. For this, different types of antenna have been designed and investigated, such as circularly polarized, frequency reconfigurable, and antenna arrays . Although these antennas can be enhanced in radiation performance by arraying or polarized, it is difficult to meet the features of miniaturization and long range power transfer (more than 1 m), no matter in single or arraying forms.…”

Section: Introductionmentioning

confidence: 99%

The design of radio frequency energy harvesting and radio frequency-based wireless power transfer system for battery-less self-sustaining applications

Zhang

Bai

Han

et al. 2018

Int J RF Microw Comput Aided Eng

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In this paper, the RF energy harvesting system and RF-based wireless power transfer system are proposed and designed for battery-less self-sustaining application. For energy harvesting, the designed antenna array improves the received RF power effectively and also can harvest RF energy in multi-frequency bands. For wireless power transfer, the proposed helical antenna realizes the system design in miniaturization. Subsequently, the T shape LC matching network are designed between the antenna and the rectifying circuit to obtain more power transmission. The measured results show that the proposed Wi-Fi rectifier and 433 MHz rectifier offer a maximum conversion efficiency of 66.8% and 76% in case of the input power is −3 dBm and 0 dBm, respectively. Finally, the performance of the RF-based wireless power transfer system and RF energy harvesting system are attested by experimentally measurement, the measured results indicate that these systems can be used to power electronic. K E Y W O R D S antenna array, low-power electronic devices, rectifier, RF energy harvesting, RFbased wireless power transfer 1 | INTRODUCTIONWith the explosive and rapid development of electronic technologies, various low-power integrated electronic devices, and miniaturized wireless systems have become ubiquitous throughout our daily lives. Meanwhile, numerous studies have been focused on the feasibility of powering these devices and systems through the harvesting of ambient radio frequency (RF) electromagnetic energy from some power sources such as mobile signal base station and Wi-Fi routers. 1-3 Besides, the idea of using wireless power transfer (WPT) technique for powering low-power and energy-constrained electronic devices has also become an upsurge of research. 4 It is significant that RF energy harvesting (EH) technique and WPT technique are the potential alternatives in generating clean and renewable power source, which definitely presents a promising scheme in battery-less self-sustaining applications for future.For RF EH technique, a rectenna (receiving antenna and rectifying circuit) is one of the most popular system components. Various designs have been investigated, such as multiband rectennas, 5-7 broadband rectennas, 8,9 and rectenna arrays. 10,11 The overall performance of a rectenna is normally determined by the performance of the designed receiving antenna and the RF-to-DC conversion efficiency of the rectifying circuit. Since the ambient RF sources are weak, a receiving antenna with high gain is required to improve input power levels, simultaneously, broadband means more RF energy can be accumulated from different frequency bands. Hence, antennas with high gain and broadband are greatly preferred. At present, the main challenge is how to improve the power conversion efficiency for such a nonlinear rectifying circuit at low-input power levels. This is because the nonlinear characteristics of rectifying diodes, the input impedance of a rectifying circuit varies with frequency and input power levels. Here

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A Compact Frequency Reconfigurable Rectenna for 5.2- and 5.8-GHz Wireless Power Transmission

Cited by 86 publications

References 8 publications

RF power harvesting: a review on designing methodologies and applications

RF power harvesting: a review on designing methodologies and applications

Reconfigurable rectenna array design with mutual coupling analysis

The design of radio frequency energy harvesting and radio frequency-based wireless power transfer system for battery-less self-sustaining applications

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