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2016•International Symposium on Antennas and PropagationRequires access

Highly-efficient power transmitter coil design for small wireless sensor nodes

Souta Masuda, Tetsuya Hirose, Yuki Akihara, Nobutaka Kuroki, Masahiro Numa, Masanori Hashimoto

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Abstract

We present a power transmitter coil design for millimeter-size small wireless sensor nodes to improve coupling coefficient. We also develop a wireless power transfer (WPT) system using resonant coupling to achieve higher power transfer efficiency. Simulation results demonstrated that the power transfer efficiency was 60% at z-gap = 10 mm. Compared with conventional system, coupling coefficient was improved about 2.5 times higher and the power transfer efficiency was improved by 3% when z-gap = 10 mm.

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What this paper is about

We present a power transmitter coil design for millimeter-size small wireless sensor nodes to improve coupling coefficient. We also develop a wireless power transfer (WPT) system using resonant coupling to achieve higher power transfer efficiency. Simulation results demonstrated that the power transfer efficiency was 60% at z-gap = 10 mm. Compared with conventional system, coupling coefficient was improved about 2.5 times higher and the power transfer efficiency was improved by 3% when z-gap = 10 mm.

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

We present a power transmitter coil design for millimeter-size small wireless sensor nodes to improve coupling coefficient. We also develop a wireless power transfer (WPT) system using resonant coupling to achieve higher power transfer efficiency. Simulation results demonstrated that the power transfer efficiency was 60% at z-gap = 10 mm. Compared with conventional system, coupling coefficient was improved about 2.5 times higher and the power transfer efficiency was improved by 3% when z-gap = 10 mm.

Key concepts: Wireless power transfer, Transmitter, Coupling coefficient of resonators, Electromagnetic coil, Electrical engineering, Coupling (piping), Maximum power transfer theorem, Power (physics)

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