Balanced RF Rectifier for Energy Recovery With Minimized Input Impedance Variation

Wei, Muh‐Dey; Chang, Ya‐Ting; Wang, Defu; Tseng, Chao‐Hsiung; Negra, Renato

doi:10.1109/tmtt.2016.2642959

Cited by 35 publications

(13 citation statements)

References 17 publications

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“…Ref. has a smaller layout size since it operates at 5.8 GHz, but the fabrication of three‐layer PCB is complex and requires higher cost. Comparing with recent design, our work shows a better overall performance on the operation frequency band, peak efficiency, and layout size.…”

Section: Simulation and Measurement Resultsmentioning

confidence: 99%

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A multi‐band rectifier with modified hybrid junction for RF energy harvesting

Zeng

Tan

2018

Micro & Optical Tech Letters

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This article presents a novel multi‐band rectifier utilizing modified hybrid structure for radio frequency (RF) energy harvesting. The proposed multi‐band rectifier consists of a modified hybrid junction and three rectifying branches. The rectifying branches are placed inside the modified hybrid to reduce the layout size. The proposed multi‐band rectifier is designed for GSM‐1800, UMTS‐2100, and Wi‐Fi bands. Measured peak efficiency of the proposed rectifier reaches 61.7% at 9 dBm input power level. The results show a good overall performance on operation bands, efficiency, output voltage, and layout size. The proposed rectifier can be used for various RF energy harvesting applications, especially in the multi‐source condition.

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Section: Simulation and Measurement Resultsmentioning

confidence: 99%

“…A 180° hybrid junction was utilized as a power divider in rectifier design to achieve dual‐band operation . Branch‐line coupler was also used in rectifier to get broadband and high efficiency performance . Those designs achieve a broadband operation or high efficiency.…”

Section: Introductionmentioning

confidence: 99%

A multi‐band rectifier with modified hybrid junction for RF energy harvesting

Zeng

Tan

2018

Micro & Optical Tech Letters

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“…In recent years, 180° hybrid couplers and some other microwave passive circuits used for purposes such as dividing or combining power have been being used in RFEH circuits to increase bandwidth and efficiency . In this study, 180° hybrid ring (rat‐race) coupler and Greinacher rectifier circuit were used together in order to increase the power conversion efficiency.…”

Section: Proposed Efficiency‐enhanced Rectifier Circuitmentioning

confidence: 99%

Design of an efficiency‐enhanced Greinacher rectifier operating in the GSM 1800 band by using rat‐race coupler for RF energy harvesting applications

Gözel

Kahriman

Kasar

2018

Int J RF Microw Comput Aided Eng

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Radio frequency energy harvesting (RFEH) circuits can convert the power of communication signals from radio frequencies (RF) in the environment into direct current and voltage (DC power). In this study, the Greinacher full-wave rectifier circuit topology was combined with a 180 hybrid ring (rat-race) coupler which was a passive RF/microwave circuit. Thus, higher RF-DC conversion efficiency was obtained. First, using the Greinacher rectifier topology, RFEH circuit operating at the center frequency of 1850 MHz was designed. Then, at this frequency, designing of the rat-race coupler having 1000 MHz bandwidth was made. The S-parameter measurements and simulation data of the designed coupler circuit were compared. Finally, the high efficiency rectifier circuit where these two circuits were used together was designed. The proposed rectifier circuit was constructed on 70 × 70 × 1.6 mm 3 FR4 substrate material with a permittivity of 4.3 (ε r = 4.3). The power conversion efficiency (PCE) of the rectifier circuit, which had 125 MHz bandwidth at the center frequency of 1850 MHz and was developed with rat-race coupler, was calculated as 71% at 4.7 dBm input power. In addition, with this study, at −15 dBm input power, which was a relatively low power level, 40% PCE value was obtained. K E Y W O R D S180 hybrid ring (rat-race) coupler, Greinacher full-wave rectifier, high efficiency rectifier topology

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“…In recent years, there has been substantial progress in the design of wide dynamic range and wideband matched rectifiers to solve these problems 1‐9 . Adaptive power distribution networks reported in References 1 and 2 can be used to obtain a wide dynamic power range.…”

Section: Introductionmentioning

confidence: 99%

Rectifier array based on efficient power recycling with extended ranges of input power and frequency

Lee

Kim

2021

Micro & Optical Tech Letters

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This article presents a rectifier array for wide ranges of input power and frequency. The rectifier array was configured using two sub‐rectifiers and a 3‐dB branch‐line coupler to recycle the reflected input power through impedance mismatch, thereby extending the input power range. The two‐section branch‐line coupler is merged with matching networks to improve the power conversion efficiency (PCE) and operating bandwidth while maintaining a wide input power range. For demonstration, the proposed rectifier array was designed and fabricated. It achieved a PCE higher than 50% within the input power range of 14–33 dBm. The measured peak PCE remained above 50% within a wide frequency range of 1.5–2.7 GHz.

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Balanced RF Rectifier for Energy Recovery With Minimized Input Impedance Variation

Cited by 35 publications

References 17 publications

A multi‐band rectifier with modified hybrid junction for RF energy harvesting

A multi‐band rectifier with modified hybrid junction for RF energy harvesting

Design of an efficiency‐enhanced Greinacher rectifier operating in the GSM 1800 band by using rat‐race coupler for RF energy harvesting applications

Rectifier array based on efficient power recycling with extended ranges of input power and frequency

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