Quantifying the Impact of Slow Wave Factor on Closed-Loop Defect-Based WPT Systems

Dautov, Kassen; Hashmi, Mohammad S.; Nasimuddin, Nasimuddin; Chaudhary, Muhammad Akmal; Nauryzbayev, Galymzhan

doi:10.1109/tim.2022.3181938

Cited by 17 publications

(3 citation statements)

References 38 publications

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“…Generally, either the parallel RLC or LC can be used to model the unloaded SGP-based resonator which has the quasi-lumped resonant circuit behavior [30]. The respective values of C, L, and R can be extracted from available electromagnetic (EM) simulation software and in consonance with (5)−( 7) [23]. Here, the term f 0 represents the resonance and f c stands for the "−3" dB cut-off frequencies.…”

Section: B Sgp Techniquementioning

confidence: 99%

“…This ensures that there are minimal losses at the ports. In this paper, the J-inverter technique was employed to match Tx and Rx to the 50-Ω ports whose details can be found in [23].…”

Section: Wpt Developmentmentioning

confidence: 99%

“…However, these papers often overlook the other critical parameters such as the slow wave factor (SWF), generated magnetic (H) field, Q, and RL that are equally critical in the design of WPT systems. In this regard, it is imperative to note that the present authors analyzed the SGP-type resonators for achievable SWF and H-field [23]. Therefore, for the sake of complete SGP-based resonator analysis, this particular work aims to conceptualize various SGP-based WPT architectures in terms of two other parameters.…”

Section: Introductionmentioning

confidence: 99%

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A Comprehensive Analysis, Design, and Experimental Evaluation of Single-Loop Polygonal Slotted RF Resonators and WPT Systems

2023

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A thorough analysis of slotted ground plane (SGP)-based resonators designed for wireless power transfer (WPT) applications is reported in this paper. For the first time, some new findings that relate a resonator and WPT performance metrics to the slot shape, quality factor (Q), and radiation loss are presented in a very comprehensive manner. As a case study, a single-loop polygonal shape was considered to carry out all analyses and investigations. It has been identified that the slot shape has no impact on the performance of resonators and, hence, developed WPT. Instead, the performance is hugely dependent on Q of resonators regulated by the chosen slot area. These findings allow the conceptualization of systematic analysis of WPT systems and the development of design schemes that are readily realizable, and they also enable significant improvement in power transfer efficiency (PTE). The developed prototypes conforming to the industrial, scientific, and medical frequency bands show an enhancement in PTE to the extent of 11% during the measurements. The proposed analysis and design approach are very important steps in advancing state-ofthe-art radio-frequency WPTs. In essence, this has the potential to reinvigorate the stagnated SGP-based WPT systems so as to facilitate the requirements of low-power applications.

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Section: B Sgp Techniquementioning

confidence: 99%

“…This ensures that there are minimal losses at the ports. In this paper, the J-inverter technique was employed to match Tx and Rx to the 50-Ω ports whose details can be found in [23].…”

Section: Wpt Developmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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