Abstract
Reconfigurable metasurfaces have enriched metasurface design with a wide range of application prospects. However, traditional reconfigurable phase-modulated metasurfaces primarily rely on active devices such as diodes to change the resonant response, which means that many feeders and external circuitry are additionally loaded on the metasurface, thus leading the increasing complexity for metasurfaces design. In this paper, a reconfigurable phase-modulated metasurface based on adjustable chip resistor is proposed to control the reflected phase by rotating the knob of the rheostat. The designed metasurface can realize the functional reconstruction without external circuitry. As an example, a reconfigurable digital coding metasurface is fabricated, which is verified through both the simulation and experimentation. All the results show that the designed sample can customize the far-field scattering mode. This work provides a new idea for reconfigurable metasurfaces, which will lay the foundation for the intelligent control of metasurfaces.
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