Matching Network Elimination in Broadband Rectennas for High-Efficiency Wireless Power Transfer and Energy Harvesting

Song, Chaoyun; Huang, Yi; Zhou, Jiafeng; Carter, Paul; Yuan, Sheng; Xu, Qian; Fei, Zhouxiang

doi:10.1109/tie.2016.2645505

Cited by 217 publications

(111 citation statements)

References 33 publications

(30 reference statements)

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“…To keep up with the demands of various industrial environments, the higher efficiency and bandwidth of wireless communication system is asked for. Power amplifier (PA) is one of the most important components in Radio Remote Unit (RRU), its performance strongly influence the whole system performance in terms of bandwidth, output power, and efficiency . The PA module contributes over 65% of the energy usage in RRU, to improve the efficiency of the PAs and meet the power consumption requirement of the system, several kinds of design method is proposed, such Class‐E, Class‐J, Class‐F, and Doherty .…”

Section: Introductionmentioning

confidence: 99%

“…Power amplifier (PA) is one of the most important components in Radio Remote Unit (RRU), its performance strongly influence the whole system performance in terms of bandwidth, output power, and efficiency. 1,2 The PA module contributes over 65% of the energy usage in RRU, to improve the efficiency of the PAs and meet the power consumption requirement of the system, several kinds of design method is proposed, such Class-E, [3][4][5] Class-J, 6,7 Class-F, [8][9][10] and Doherty. 11,12 Although the working principle of those methods is difference, they all follow the same principles that minimum the output harmonic energy and the heat loss of transistor.…”

Section: Introductionmentioning

confidence: 99%

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1.6‐2.6 GHz continuous Class‐F power amplifier with gain and power‐added efficiency flatness enhancement by negative feedback structure

Luo

Feng

et al. 2019

Micro & Optical Tech Letters

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This article studies the feasibility of applying negative feedback structure in continuous Class‐F power amplifiers to improve the gain and efficiency flatness. The operation principle of the negative feedback structure under small and large signal input states is presented. The gain and efficiency are increased at high frequency part and decreased at low frequency by introducing the negative feedback structure, and the flatness is improved. Multiharmonic bilateral pull is used to obtain the optimum impedances, to reduce the interaction between source and load side, and the influence of parasitic parameters. A highly flatness amplifier with the negative feedback structure is designed operating at 1.6‐2.6 GHz by using a Cree GaN HEMT CGH40010H device. The measurement results show a gain flatness of 1.1 dB, and a power‐added efficiency flatness of 9%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

1.6‐2.6 GHz continuous Class‐F power amplifier with gain and power‐added efficiency flatness enhancement by negative feedback structure

Luo

Feng

et al. 2019

Micro & Optical Tech Letters

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“…Greinacher rectifier circuit is a popular topology for wireless power transmission. To enhance the conversion efficiency of rectifier circuit with a fixed load resistance at low input power levels, a matching network is of great importance [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Design of a Novel Compact and Efficient Rectenna for Wifi Energy Harvesting

Shi¹,

Jing²,

Fan³

et al. 2018

PIER C

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Abstract-With the increase of low power devices, the design of a compact and efficient rectenna is essential for supplying energy to the devices. This paper presents a compact rectenna for high efficient WiFi energy harvesting. A novel fractal geometry is introduced in the design of antenna for miniaturization, and the ability to harvest WiFi energy is enhanced due to its characteristics of self-similarity and space filling. Besides, a single stub matching network is designed to achieve high conversion efficiency with a relatively low input power ranging from −20 dBm to 0 dBm. Simulation and experiments have been carried out. The results show that the proposed antenna features a good characteristic of reflection coefficient and realized gain at WiFi band. The highest RF to DC conversion efficiency of the rectenna is up to 52% at 2.45 GHz with the input power of 0 dBm. This study demonstrates that the proposed rectenna can be applied to a range of low power electronic applications.

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“…[14][15][16][17] If we know the working principle of the rectifying circuit connected with an antenna, the matching between the antenna and the rectifying circuit can be achieved without using any matching circuit. 18 This is beneficial to design a rectenna with small size, high conversion efficiency, and broadband. In general, the conversion efficiency of the rectenna is calculated by simulated results or measured results.…”

Section: Introductionmentioning

confidence: 99%

A method to calculate the conversion efficiency of a rectenna

Wan

Liu

2018

Int J RF Microw Comput Aided Eng

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This article studies the working principle of a rectenna which is a combination of an antenna and a rectifying circuit. In the simulation, the working properties of the rectifying circuit can be represented by two characteristic curves which are extracted from it, and these two curves are independent of the device which is connected with it. The measured results demonstrate that the data calculated by the two curves can be used to accurately describe the conversion efficiency of the rectifying circuit. Furthermore, the two curves are used to represent the rectifying circuit in the calculation of the rectenna conversion efficiency. In addition, with the characteristic impedance of the antenna, the calculation equation is given. In the experiment of the rectenna, the measured conversion efficiency of the rectenna is in agreement with the data calculated by the proposed equation, which proves the accuracy of this method.

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Matching Network Elimination in Broadband Rectennas for High-Efficiency Wireless Power Transfer and Energy Harvesting

Cited by 217 publications

References 33 publications

1.6‐2.6 GHz continuous Class‐F power amplifier with gain and power‐added efficiency flatness enhancement by negative feedback structure

1.6‐2.6 GHz continuous Class‐F power amplifier with gain and power‐added efficiency flatness enhancement by negative feedback structure

Design of a Novel Compact and Efficient Rectenna for Wifi Energy Harvesting

A method to calculate the conversion efficiency of a rectenna

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