A conformal high-efficiency ultra-thin flexible rectifying metasurface with simple structure DOI Creative Commons

Xiaofeng Sun,

Yunhao Li, Qingguo Xie

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(27), P. 47871 - 47871

Published: Dec. 2, 2024

This paper proposes a conformal high-efficiency ultra-thin flexible rectifying metasurface (RMS) with simple structure applied for wireless power transferring (WPT), featuring polarization insensitivity and wide-angle incidence capabilities. The RMS unit adopts rotationally symmetric consisting of double rings cross-shaped elements, two diodes placed in the gap to achieve insensitivity. Simultaneously, by adjusting dimensions "double ring cross" structure, its output impedance is varied conjugate matching diode input impedance, thereby eliminating network. Furthermore, an inductor are series-connected at ends one horizontal branch vertical each unit's enable interconnection between units form direct current (DC) pathway. Simplifying combining network reducing complexity system structure. 6 × was designed fabricated using 0.6 mm polyimide substrate, overall 114.6mm 114.6 mm. Measurement results demonstrate that 5.8 GHz, proposed achieves efficiency exceeding 66.26% under different polarizations. System exceeds 50.42% over incident angle range 0° 30° reaches 68.18% density 0.796 mW/cm2. Even cylindrical radius 100 mm, remains above 35.44%.

Language: Английский

A conformal high-efficiency ultra-thin flexible rectifying metasurface with simple structure DOI Creative Commons

Xiaofeng Sun,

Yunhao Li, Qingguo Xie

et al.

Optics Express, Journal Year: 2024, Volume and Issue: 32(27), P. 47871 - 47871

Published: Dec. 2, 2024

This paper proposes a conformal high-efficiency ultra-thin flexible rectifying metasurface (RMS) with simple structure applied for wireless power transferring (WPT), featuring polarization insensitivity and wide-angle incidence capabilities. The RMS unit adopts rotationally symmetric consisting of double rings cross-shaped elements, two diodes placed in the gap to achieve insensitivity. Simultaneously, by adjusting dimensions "double ring cross" structure, its output impedance is varied conjugate matching diode input impedance, thereby eliminating network. Furthermore, an inductor are series-connected at ends one horizontal branch vertical each unit's enable interconnection between units form direct current (DC) pathway. Simplifying combining network reducing complexity system structure. 6 × was designed fabricated using 0.6 mm polyimide substrate, overall 114.6mm 114.6 mm. Measurement results demonstrate that 5.8 GHz, proposed achieves efficiency exceeding 66.26% under different polarizations. System exceeds 50.42% over incident angle range 0° 30° reaches 68.18% density 0.796 mW/cm2. Even cylindrical radius 100 mm, remains above 35.44%.

Language: Английский

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