Design of Dual-Band Inverse Class-F Rectifier for Wireless Power Transfer and Energy Harvesting

Nguyen, Dang‐An; Bui, Gia Thang; Nam, Hyungseok; Seo, Chulhun

doi:10.1109/lmwc.2022.3217459

Cited by 23 publications

(13 citation statements)

References 19 publications

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“…First, a DB harmonic control network (DB-HCN) is mounted on the diode terminals in order to terminate precisely the harmonic components of the diode current and voltage waveforms for diode loss minimization. This circuit can be implemented on either only the diode cathode -type I [8], [14], or both two diode sides -type II [9], [10], or only the diode anode -type III [13].…”

Section: Overview Of the Conventional Db Rectifier And Its Disadvantagementioning

confidence: 99%

“…In this paper, a consistent structure is proposed in order to realize a DB rectifier with shunt-diode configuration which exhibits low design complexity, low insertion loss and compact size while both DB harmonic control and DB fundamental matching criteria are satisfied for PCE maximization. Specifically, a typical T-type DB matching network is directly implemented with the diode impedance at the fundamentals which is analyzed showing a definite capability of circuit , [14], type II [9], [10], and type III [13].…”

Section: Introductionmentioning

confidence: 99%

“…FIGURE 1.Conventional structure for DB shunt-diode rectifier design including DB-HCN and DB-FMN with several types: type I [8],[14], type II[9],[10], and type III[13].…”

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confidence: 99%

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A Novel Structure of Compact and High-Efficiency Dual-Band Rectifier With Low Complexity for Wireless Power Transfer

Nguyen,

Bui,

Seo

2024

IEEE Access

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A novel methodology is presented for designing compact and high-efficiency dual-band (DB) rectifier with low insertion loss and complexity. The proposed network implements an opposite order of fundamental matching and harmonic control, as compared to the conventional approaches. Specifically, a typical T-type DB fundamental matching network with closed-form formulas is first used to match directly the diode impedance to the 50Ω standard load. As analyzed, this matching circuit consistently generate a perfect DB matching due to the frequency-dependent diode impedance without any additional impedance tuning methods, yielding a low design complexity. Then, a DB harmonic control mechanism is provided by combination of a DB resonator and a 50Ω tuning series line, which can yield precise class-R harmonic termination of second and third harmonics with only a total of three transmission lines leading a low insertion loss. A rectifier is designed, simulated and measured at two target frequencies of 2.45 and 5.8 GHz for verification. The measured results show a peak PCE of 80.6% at 2.33 GHz and 73.1% at 5.65 GHz while having a compact size of 4.6×3.1 cm 2 , indicating achievement of a superior performance with a simplicity of the design process to the other similar designs.INDEX TERMS Microwave rectifiers, wireless power transfer, energy harvesting, DB harmonic control, DB impedance matching, transmission lines, DB resonator.

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Section: Overview Of the Conventional Db Rectifier And Its Disadvantagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Novel Structure of Compact and High-Efficiency Dual-Band Rectifier With Low Complexity for Wireless Power Transfer

Nguyen,

Bui,

Seo

2024

IEEE Access

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“…The authors are with the Department of Artificial Intelligence Convergence, Pukyong National University, Busan 48513, South Korea (e-mail: yudi_april@pukyong.ac.kr; wychung@pknu.ac.kr). [11], [12], [13], IMN designs [14], [15], [16], CMOS technology [17], [18], rectifier designs [19], and VM optimization [20], [21], [22]. However, these approaches often overlook the interdependencies among components and real-world applicability, resulting in less-than-ideal performance.…”

Section: Introductionmentioning

confidence: 99%

Deep Learning Design Framework: High-Precision Front-End RFEH for Food Monitoring Applications

Nando,

Chung

2024

IEEE Trans. Antennas Propagat.

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This paper introduces an innovative deep learning design framework for front-end radio frequency energy harvesting (RFEH), employing stacking ensemble learning (SEL). The framework integrates multi-output regression (MOR), multilabel classification (MLC), and multivariate time series (MTS) in sequence to achieve accurate prediction (R 2 > 0.90) and classification (> 0.95) at each stage. By transforming frequency to datetime and consolidating output parameters into consecutive time intervals, our approach intelligently combines receiving antennas, impedance matching networks (IMNs), and voltage multipliers (VMs) through MOR and MLC, while MTS guides the determination of geometrical parameters and values. To validate our method, we developed an efficient food sensor tag embedded with an RFEH circuit operating at 915 MHz. The tag, featuring antennas designed by MTS (including an inset-fed rectangular microstrip patch antenna [RMPA], a folded collinear antenna [FCA], and a quasi-Yagi antenna [QYA]), achieves a power conversion efficiency (PCE) of 55.17% with an input power of 6.25 dBm, demonstrating stable sensing capabilities. This integrated deep learning framework holds promise for tailored front-end RFEH design in food quality monitoring application, with significant implications across industries.Index Terms-Antenna design, food monitoring application, front-end RF energy harvesting (RFEH), multi-output regression (MOR), multilabel classification (MLC), multivariate time series (MTS), and stacking ensemble learning (SEL).

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“…Moreover, compact size is the general trend of current technology development, therefore, in the rectifier design, size is always a concern. In addition, depending on different applications, the operating frequency and bandwidth requirements of the rectifiers are also other, which can include types of operating frequency such as single-band [7]- [12], multi-band [13]- [18] and broadband [19]- [22].…”

Section: Introductionmentioning

confidence: 99%

A Novel and Compact Design of High-Efficiency Broadband Rectifier for Energy Harvesting and Wireless Power Transfer

Bui,

Nguyen,

Seo

2024

IEEE Access

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In this paper, a novel and compact structure is presented for designing a rectifier with broad operating bandwidth and high efficiency for energy harvesting and wireless power transfer based on shuntdiode configuration. Specifically, different from the conventional structure of shunt-diode configuration, the proposed structure employs a combination of two diodes and only two transmission lines that lead to a very compact size. The proposed rectifier can be matched to the source impedance when two diode branches have conjugate impedances. The admittances of two branches are analyzed based on the theory that leads to the parameters of two transmission lines can be derived by closed-forms equations. For validation, a broadband rectifier based on Schottky diode BAT15-03W was designed, simulated, fabricated, and measured showing that the rectifier can operate in the fractional bandwidth of 63.9% from 1.64 GHz to 3.18 GHZ with the condition of higher 70% power conversion efficiency or fractional bandwidth of 99.1% from 1.34 GHz to 3.97 GHz with the condition of over 50% power conversion efficiency at 13 dBm input power. Moreover, the size of the rectifier is very compact, it is recorded as only 15 mm × 14 mm. In comparison with the published broadband rectifiers, the proposed rectifier has many advantages such as smaller size and wider bandwidth.INDEX TERMS Broadband operation, energy harvesting (EH), shunt-diode configuration, microwave rectifier, wireless power transfer (WPT).

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Design of Dual-Band Inverse Class-F Rectifier for Wireless Power Transfer and Energy Harvesting

Cited by 23 publications

References 19 publications

A Novel Structure of Compact and High-Efficiency Dual-Band Rectifier With Low Complexity for Wireless Power Transfer

A Novel Structure of Compact and High-Efficiency Dual-Band Rectifier With Low Complexity for Wireless Power Transfer

Deep Learning Design Framework: High-Precision Front-End RFEH for Food Monitoring Applications

A Novel and Compact Design of High-Efficiency Broadband Rectifier for Energy Harvesting and Wireless Power Transfer

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