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To overcome this challenge, this paper proposes a strategy to separate the primary loss components from the weak\u2010coupling stage. In the proposed strategy, a gyrator in the form of a double\u2010resonance T\u2010block is added just before the weak\u2010coupling stage to improve the overall efficiency. Then, the strategy is realized by various topologies such as compensating circuits, added coils, isolated transformers, and integrated\u2010\/split\u2010 inductors\/coils. Also, the optimized designs and component selection for resonance and the mathematical derivation for optimal load resistances were investigated. ANSYS comparative analyses of the topologies are presented by considering practical aspects, including component designs, power flows, transfer efficiency, resonance frequency shifting, and optimal loads. Finally, the analyses were validated using the fabricated experimental setups and demonstrated an efficiency improvement of about 5% for a case with a coupling factor of 0.1. The proposed strategy offers suggestions for industrial designs of high\u2010power wireless battery charging systems using resonant inductive coils.<\/jats:p>","DOI":"10.1002\/cta.4400","type":"journal-article","created":{"date-parts":[[2025,1,24]],"date-time":"2025-01-24T00:23:55Z","timestamp":1737678235000},"page":"5638-5650","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Improved Efficiency of Weakly Coupled Wireless High\u2010Power Transfer Systems by Loss\u2010Separation Strategy"],"prefix":"10.1002","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9781-0856","authenticated-orcid":false,"given":"Hoach","family":"The\u00a0Nguyen","sequence":"first","affiliation":[{"name":"Smart OR Lab, Advanced Power and Energy Center, Department of Electrical Engineering Khalifa University  Abu Dhabi 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