Novel and compact design of capacitively loaded C-shaped DGS resonators for dual band wireless power transfer (DB-WPT) systems

Atallah, Hany A.; Huseein, Rasha; Abdel‐Rahman, Adel B.

doi:10.1016/j.aeue.2018.12.016

Cited by 19 publications

(21 citation statements)

References 28 publications

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“…As a result, this frequency has a lower efficiency than the other frequency at 0.28 GHz. The proposed work introduces the idea of using the resonator at the top layer for the WPT which is not formerly proposed in the lately published works [21][22][23][24][25][26][27][28][29][30]. The overall dimensions of the design are 20 × 20 mm 2 and the accomplished FoM are 0.2736 and 0.238, respectively using (8).…”

Section: Resultsmentioning

confidence: 99%

“…In [26], dual-mode inductors are used and implemented for dual-band WPT system, the system operated at 90 and 138 MHz with efficiencies of 70 and 69%, respectively. This study improved the performance of the DF-WPT by reducing the size and increasing the efficiencies compared to recently published works [21,22,[27][28][29][30]. In [29], the authors proposed and investigated the DF-WPT which operates at 0.3 and 0.9 GHz at a transmission distance of 10 mm using two interlaced and coupled C-shaped DGS at the ground plane.…”

Section: Introductionmentioning

confidence: 93%

“…This study improved the performance of the DF-WPT by reducing the size and increasing the efficiencies compared to recently published works [21,22,[27][28][29][30]. In [29], the authors proposed and investigated the DF-WPT which operates at 0.3 and 0.9 GHz at a transmission distance of 10 mm using two interlaced and coupled C-shaped DGS at the ground plane. Moreover, the control of these two frequencies is difficult due to the coupling of the two etched C-shaped DGS.…”

Section: Introductionmentioning

confidence: 93%

“…Further, the control of the two frequencies is independent due to the isolation between the two resonators which easily allows the adjusting of the two frequencies. In addition, the proposed design operates at 0.28 and 0.49 GHz and discusses how to exploit the top layer as well the bottom layer which is not previously investigated in the recently published works [21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Compact coupled resonators for small size dual‐frequency wireless power transfer (DF‐WPT) systems

Atallah

Hussein

Abdel‐Rahman

2020

IET Microwaves, Antennas & Propagation

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This work introduces a novel design for high efficiency and compact size dual‐frequency wireless power transfer (DF‐WPT) systems. The proposed design is composed of two identical transmitting (Tx) and receiving (Rx) substrates. Each substrate has a microstrip feed line, a C‐shaped coupled resonator on the top layer and a spiral coupled defected ground structure on the bottom layer. The system is analysed using J‐inverters for the dual‐frequencies (DFs) operation. The measured results show that the proposed DF‐WPT system with a compact size of 20 × 20 mm2 is able to provide a stable WPT characteristic with total efficiencies of 91.2 and 79.4% at 0.28 and 0.49 GHz, respectively with a transmission distance of 6 mm. The proposed system achieved good agreements between the analytical design procedure, the circuit model, the electromagnetic simulations, and the measurements.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compact coupled resonators for small size dual‐frequency wireless power transfer (DF‐WPT) systems

Atallah

Hussein

Abdel‐Rahman

2020

IET Microwaves, Antennas & Propagation

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“…Nevertheless, there is an upsurge research trend in venturing into other types of resonators with diverse and irregular shapes such as defected ground structure (DGS). DGS resonator designs offer yet another miniaturization technique without forgoing WET performance especially high Q-factor such as circular DGS [23], interlaced DGS [24], C-shaped DGS [33], and bow-tie DGS [38]. However, the lowest frequency for all these designs hitherto is 300 MHz with ratio between frequency bands of not more than 3.…”

Section: Rectification Techniques 61 Resonator Designmentioning

confidence: 99%

Dual-Band Resonator Designs for Near-Field Wireless Energy Transfer Applications

Pon¹,

Himdi²,

Rahim³

et al. 2020

Recent Wireless Power Transfer Technologies

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Dual-band near-field wireless energy transfer (WET) designs outweigh single-band system with regard to either concurrent energy and data transfer or multiple wireless charging standard functionalities. There are two major approaches in resonator designs, namely, multi-coil and single-coil. This chapter presents a review on design constraints for each design approach and rectification techniques available in counteracting impediments of dual-band near-field WET systems. Challenges pertinent to link design are discussed primarily followed by methods implemented to mitigate detrimental impact on performance metrics. Front-end dual-band resonator design methods are accentuated in this chapter in lieu of endto-end WET system. This is envisioned to offer insights for designers contemplating on design modes or developing ways to facilitate a boost in rectification options currently available.

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Reconfigurable dual‐band wireless power transfer (RDB‐WPT) system using meander line for near‐field WPT applications

Atallah,

Hussein,

Abdel‐Rahman

2023

Circuit Theory & Apps

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SummaryIn this work, the reconfigurable dual‐band wireless power transfer (RDB‐WPT) system is proposed. The studied system allows to transfer power or data in two frequency bands. The first band is tuned from 1.4 to 1.7 GHz while the second band is fixed at 2.17 GHz. The receiver circuit (Rx) is identical to the transmitter circuit (Tx), and they are coupled in back‐to‐back. The feed line is extended with a stub for matching, and it is built on the top layer. The meander line and the rectangular DGS are placed on the ground. The prototype is fabricated with a compact size of 30 × 15 mm2 to be used in small portable electronic devices. The measured efficiencies are 95% at the average of the tuned band and 92% at 2.17 GHz. Good agreements are achieved between the simulation, theoretical studies, and measurements.

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Novel and compact design of capacitively loaded C-shaped DGS resonators for dual band wireless power transfer (DB-WPT) systems

Cited by 19 publications

References 28 publications

Compact coupled resonators for small size dual‐frequency wireless power transfer (DF‐WPT) systems

Compact coupled resonators for small size dual‐frequency wireless power transfer (DF‐WPT) systems

Dual-Band Resonator Designs for Near-Field Wireless Energy Transfer Applications

Reconfigurable dual‐band wireless power transfer (RDB‐WPT) system using meander line for near‐field WPT applications

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