Resonant Near-Field Power Transfer: Revisiting the frequency-splitting phenomenon using the spherical mode theory antenna model

Blazevic, Zoran; Skiljo, Maja

doi:10.1109/map.2019.2920102

Cited by 5 publications

(11 citation statements)

References 21 publications

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“…When the two Chu-spheres do not intersect (d > 2a), the equivalent two-port network of coupling between different directly fed ESAs based on the addition and translation theorem of spherical modes, i.e. on Z-matrix from [5], [6], is drawn in Fig. 2.…”

Section: Wpt Modelingmentioning

confidence: 99%

“…However, much higher efficiency can be achieved by satisfying critical coupling conditions [4], [6], and the highest by the conjugate matching [5], [6]. In this scenario, the maximum |S 21 | obtained by the two latter methods are virtually equal, and the differences in their frequency characteristics are within the thickness of the curve, which enables their fair comparison for iterative adjustments.…”

Section: Examplementioning

confidence: 99%

“…The phenomenon of splitting the resonant frequency observed in the coupled antenna systems, and the critically coupling adjustment for the best WPT efficiency by controlling the coupling between the driving loop and the antenna body are explored using the circuit theory in [4], whereas the conjugate matched WPT system is analysed by Spherical Mode Theory-Antenna Model (SMT-AM) in [5]. The optimum WPT performances methods are compared on the basis of the frequency splitting phenomenon analysis by SMT-AM in [6].…”

Section: Introductionmentioning

confidence: 99%

“…After the description of the theory in Sec. II, followed by some necessary generalization of the analysis from [5], [6] related to WPT between different antennas in Sec. III, in Sec.…”

Section: Introductionmentioning

confidence: 99%

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Iterative Solution to Resonant Near-field Coupling Adjustments between Different Electrically Small Antennas

Blazevic¹

2022

Preprint

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<p>In this paper, iterative procedures based on Banach fixed-point theorem of adjusting transmitter and receiver impedances for achieving the maximum near-field power transfer performances are explored. As the background of proposed methods for controlling frequency splitting, an important phenomenon that occurs when two antennas are coupled in near-field, the analysis of the resonant near-field coupling using spherical mode theory-antenna model is applied. Methods of recursive alternate system tuning, critical coupling, and conjugate matching are mutually compared, and selection among them is given on disposal to user to achieve aimed performances.</p>

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Section: Wpt Modelingmentioning

confidence: 99%

Section: Examplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…After the description of the theory in Sec. II, followed by some necessary generalization of the analysis from [5], [6] related to WPT between different antennas in Sec. III, in Sec.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Iterative Solution to Resonant Near-field Coupling Adjustments between Different Electrically Small Antennas

Blazevic¹

2022

Preprint

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show abstract

Section: Introductionmentioning

confidence: 99%

Iterative Solution to Resonant Near-Field Coupling Adjustments Between Different Electrically Small Antennas

Blažević

2023

IEEE Trans. Antennas Propagat.

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In this paper, iterative procedures based on Banach fixed-point theorem of adjusting transmitter and receiver impedances for achieving the maximum near-field power transfer performances are explored.As the background of proposed methods for controlling frequency splitting, an important phenomenon that occurs when two antennas are coupled in near-field, the analysis of the resonant near-field coupling using spherical mode theory-antenna model is applied. Methods of recursive alternate system tuning, critical coupling, and conjugate matching are mutually compared, and selection among them is given on disposal to user to achieve aimed performances.

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Measurements of Frequency Splitting Phenomenon in Resonant Wireless Power Transfer System of Inductively Fed Antennas

Blažević,

Škiljo,

Bartulović

et al. 2024

2024 International Conference on Software, Telecommunications and Computer Networks (SoftCOM)

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Resonant Near-Field Power Transfer: Revisiting the frequency-splitting phenomenon using the spherical mode theory antenna model

Cited by 5 publications

References 21 publications

Iterative Solution to Resonant Near-field Coupling Adjustments between Different Electrically Small Antennas

Iterative Solution to Resonant Near-field Coupling Adjustments between Different Electrically Small Antennas

Iterative Solution to Resonant Near-Field Coupling Adjustments Between Different Electrically Small Antennas

Measurements of Frequency Splitting Phenomenon in Resonant Wireless Power Transfer System of Inductively Fed Antennas

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