Journal
OPTICS EXPRESS
Volume 29, Issue 2, Pages 2658-2668Publisher
Optica Publishing Group
DOI: 10.1364/OE.415730
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Funding
- National Key Research and Development Program of China [2017YFA0100203]
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The programmable reflective metasurface proposed in the study combines multi-bit phase quantization and dual-band operations for actively controlling diverse functions. It can be applied in imaging and high-capacity wireless communications.
Programmable reflective metasurfaces that combine the features of reconfigurable phased array antennas and reflectors are an effective solution for radar and modern communication systems. However, most of the demonstrated active metasurfaces support tunable responses for a specific frequency band. Thus, we propose a programmable metasurface that combines the advantages of multi-bit phase quantization and dual-band operations. To actively control the diverse functions, two PIN diodes are integrated on the radiating element, and these diodes are controlled by the biasing voltage. The unit cell is fabricated, and experimental characterization is performed in the waveguide measurement setup. The proposed design can be applied for imaging and high-capacity wireless communications. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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