A Performance Enhanced Dual-band Wireless Power Transfer System for Practical ISM Bands

Dautov, Kassen; Gupta, Rahul; Hashmi, Mohammad S.

doi:10.1109/apmc46564.2019.9038874

Cited by 12 publications

(15 citation statements)

References 6 publications

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“…It is important to note that WPTs have seen a resurgence of multiple interesting applications within the biomedical domain, consumer electronics, sensor networks, etc.. 17,21 However, it is also pertinent to mention that low-power application scenarios, for example, implantable devices, necessitate the development of WPTs with more emphasis on the miniaturization and power transfer efficiency. Keeping these aspects in the context, this paper focuses on the development of a DGS-based tri-band WPT system for facilitating power and information transfer in healthcare-related segments.…”

Section: Tri-band Dgs-based Resonator Design Proceduresmentioning

confidence: 99%

“…The DGS technique, on the other hand, has some definite advantages over the conventional coil-based approach such as miniaturization, fabrication and design simplicity, multi-band operation, and so forth, and, therefore it could be a better alternative to solve these constraints associated with the coil-type WPTs. 15 It is also accepted that different DGS shapes lead to varying results and, therefore, authors have explored different DGS shapes, such as plus, 5 dual-E, 8 H, 14 triangle, 16 square, 17 and circle. 18 In general, there are two methods, namely, cascaded 17 and multi-mode 19 techniques, available to develop the multi-band WPT systems.…”

Section: Introductionmentioning

confidence: 99%

“…15 It is also accepted that different DGS shapes lead to varying results and, therefore, authors have explored different DGS shapes, such as plus, 5 dual-E, 8 H, 14 triangle, 16 square, 17 and circle. 18 In general, there are two methods, namely, cascaded 17 and multi-mode 19 techniques, available to develop the multi-band WPT systems. For example, the DGS-based dual-band WPT systems were examined in References 20 and 21.…”

Section: Introductionmentioning

confidence: 99%

“…The other articles applying the cascaded approach include the practical dual-band WPT systems, that is, WPT operates at the industrial, scientific, and medical bands of 0.433 and 0.9 GHz. 17,22 Although the last few years have seen significant advances in this domain, 15 still there is a need for innovation to meet the requirements of emerging biomedical and low-power high-rate applications.…”

Section: Introductionmentioning

confidence: 99%

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Compactmulti‐frequencysystem design forSWIPTapplications

Dautov

Hashmi

Nauryzbayev

et al. 2021

Int J RF Microw Comput Aided Eng

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The potential advantages of simultaneous wireless information and power transfer (SWIPT) applications have necessitated innovations in the associated circuits and systems. This article, therefore, explores the concept of cascaded resonators, for the first time, in the design of a compact-size defected ground structure (DGS)-based tri-band wireless power transfer (WPT) system to advance the SWIPT technology. The design is augmented with a systematic design procedure that is preceded by the development of a new double-elliptic DGS-based tri-band resonator. Initially, the analysis of the proposed resonator is performed to identify the impact of defect size on the bandwidth. Subsequently, the resonators are cascaded to achieve a tri-band functionality and then utilized in the design of WPT. The designed WPT operates at 0.3, 0.5, and 0.9 GHz, and takes a compact size of 39 × 13 mm 2 . The measurement of the realized WPT with the transmitter and receiver, separated by the distance of 10 mm, provides an efficiency of around 60% at all three bands with the figure of merit values of about 0.5. Furthermore, the proposed design achieves a bandwidth of more than 3 MHz bandwidth at the frequencies corresponding to communication standards.

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Section: Tri-band Dgs-based Resonator Design Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compactmulti‐frequencysystem design forSWIPTapplications

Dautov

Hashmi

Nauryzbayev

et al. 2021

Int J RF Microw Comput Aided Eng

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View full text Add to dashboard Cite

show abstract

“…The recent literature is replete with reports of DGS‐based bandstop filters (BSFs) and their usage in near‐field wireless power transfer (WPT) systems 9‐13 . In essence, performance of DGS‐based filter plays a crucial role in regulating the power transfer efficiency of the WPT circuits and, therefore, there has been a great deal of research on this topic 14‐17 .…”

Section: Introductionmentioning

confidence: 99%

Analysis of DGS filters using π‐circuit model

Malhotra

Hashmi

2020

Engineering Reports

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The design and analysis of two defected ground structures (DGS)-based filters have been proposed in this article. The first is a multifrequency bandstop filter (BSF) which utilizes a semi-H defect in the ground plane. This structure is then prototyped on a Rogers 4350B substrate of overall size 45 mm × 15 mm with an external SMD capacitors employed to control the resonance of the circuit for the stopband frequencies of 433, 700, and 915 MHz. An equivalent-circuit is modified to validate this multiband filter. The second filter is a combination of a BSF and bandpass filter in one structure. The filter operating with a controllable passband and stopband frequency is fabricated on Rogers 4350B lossy substrate. Two SMD capacitors are loaded in the filter structure to control the passband and stopband frequencies of the filter with a structure size of 20 mm x 20 mm. Finally, the equivalent circuit from the BSF is modified further to encompass the bandpass and bandstop frequency response of the proposed work. K E Y W O R D S multiband DGS, circuit model, bandstop filter, bandpass filter 1 INTRODUCTION Defected ground structures (DGS) are introduced in order to improve the performance of microstrip circuits and components while minimizing the overall size of the design. 1-4 In a DGS, defects are introduced in the ground plane to improve the frequency response of the considered components. The geometry of this defect is selected such that it disturbs the surface current in the ground plane and helps in achieving the desired electromagnetic effect. The miniaturization, selectivity, bandwidth enhancement, and so on provided by the DGS has catapulted this as a key concept in the design of many high frequency circuits and components such as filters, power dividers, antennas, antenna arrays, and so on 5-8 The recent literature is replete with reports of DGS-based bandstop filters (BSFs) and their usage in near-field wireless power transfer (WPT) systems. 9-13 In essence, performance of DGS-based filter plays a crucial role in regulating the power transfer efficiency of the WPT circuits and, therefore, there has been a great deal of research on this topic. 14-17 It has been established that the DGS filters used in the design of WPT systems can be simplified through equivalent circuit-based analysis. The equivalent circuit models of such filters are relatively simple in nature and do not consider the effects of the discontinuity present between the microstrip line and the defected ground plane. However, the report on the-type equivalent circuit to model the DGS which looks into this concern to some extent 18 can be useful for the design of more The work was financially supported in part through the Nazarbayev University FDCRG Number SOE2019005 (110119FD4515). This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Recent Advancements in Defected Ground Structure-Based Near-Field Wireless Power Transfer Systems

et al. 2020

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The defected ground structure (DGS) technique enables miniaturization of the resonator which leads to the development of the compact near-field wireless power transfer (WPT) systems. In general, numerous challenges are inherent in the design of the DGS-based WPT systems and, hence, appropriate trade-offs for achieving optimal performance are required. Furthermore, the design advancements have led to the development of the DGS-based multi-band WPT systems to fulfill the needs of simultaneous data and power transfer. The innovations in the DGS-based WPT systems have also resulted in the definition of more commonly used figures-of-merit for the benchmarking of various performance metrics. The literature is replete with the design schemes to address one or more associated design challenges and successful WPT system realizations with enhanced performance. With this in mind, this paper touches upon the DGS-based WPTs developments and presents a concise report on the current state-of-the-art and future directions.INDEX TERMS Coupling, defected ground structure (DGS), multi-band, resonator, Q factor, single-band, wireless power transfer (WPT).

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A Performance Enhanced Dual-band Wireless Power Transfer System for Practical ISM Bands

Cited by 12 publications

References 6 publications

Compactmulti‐frequencysystem design forSWIPTapplications

Compactmulti‐frequencysystem design forSWIPTapplications

Analysis of DGS filters using π‐circuit model

Recent Advancements in Defected Ground Structure-Based Near-Field Wireless Power Transfer Systems

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