Wireless power transfer (WPT) is a transformative technology, with several startups actively pursuing its development worldwide. In 2022, Japan introduced new radio regulations for far beam WPT at 920 MHz, 2.4 GHz, and 5.7 GHz. To expand the applicability of far beam WPT, the need arises for a cost-effective phased array antenna system that boosts beam efficiency, received power, and mitigates interference with conventional wireless systems. This paper presents the research and development results of an optimal structured phased array with novel beamforming circuits for beam WPT.
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Shinohara et al. (2024) studied this question.
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