An electronically controlled phase-encoded metasurface structure

Abstract

This invention relates to the field of artificial electromagnetic materials technology and discloses an electrically controlled phase-encoded metasurface structure, comprising, from top to bottom, a top unit structure layer, a first dielectric substrate layer, an intermediate ground layer, a second dielectric substrate layer, and a bottom bias layer. The top unit structure layer includes two C-shaped metal patches with their openings facing back-to-back, and a PIN diode connected between the two metal patches. Each metal patch is connected to the bottom bias layer through a metal via, and the bottom bias layer is externally connected to a voltage source. This invention uses an electrically controlled method to quickly and conveniently change the electromagnetic response of the metasurface unit, solving the problem that the electromagnetic wave response and electromagnetic function of traditional metasurfaces are fixed once designed and manufactured, making them unable to meet the needs of complex electromagnetic systems. It also provides a new approach for intelligent metasurface design, meeting the high integration requirements of intelligent components in practice.

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