Evidence map›Paper›PMID 40494914›Full record

ArticleCommunications engineering2025

Maximizing wireless power transfer efficiency at exceptional points.

Wei-Kang Hu, Bowang Zhang, Youhao Hu, Haoxiang Li, Wei Han

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Communications engineering, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Wei-Kang HuDivision of Emerging Interdisciplinary Areas, The Hong Kong University of Science and Technology, Hong Kong SAR, China.ORCID http://orcid.org/0000-0002-4911-0070
Bowang ZhangSustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China.
Youhao HuSustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China.
Haoxiang LiAdvanced Materials Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China. haoxiangli@hkust-gz.edu.cn.ORCID http://orcid.org/0000-0001-8543-2598
Wei HanSustainable Energy and Environment Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China. weihan@hkust-gz.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Magnetically coupled wireless power transfer (WPT) technology has been applied in stationary consumer electronics and holds great potential for charging traveling electric vehicles. The efficiency of WPT systems is, however, inherently vulnerable to changes in coupling and load conditions. Previous studies have underscored the robustness of parity-time (PT) symmetric WPT systems against variations in coupling strength within the exact PT region. In this study, by treating the loss rate as an adjustable parameter, we unveil that the efficiency of a PT-symmetric WPT system reaches its peak at the exceptional point (EP). Through adaptive adjustment of the virtual loss rate that pins the system at the EP, we can uphold maximum-efficiency, frequency-stable power transfer under a broad range of coupling and load conditions. Our EP-pinning strategy offers a significant advantage over conventional schemes that require on-site measurement of coupling strength and loss rates. The discovery of EP-induced efficient power transfer should facilitate the future deployment of wireless charging infrastructure.

Identifiers

PMID40494914
PMCPMC12152173

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.