1. Active metasurface for controlling reflection and absorption properties
- Author
-
Sungjoon Lim and Minyeong Yoo
- Subjects
Materials science ,business.industry ,Bandwidth (signal processing) ,General Engineering ,PIN diode ,General Physics and Astronomy ,Molar absorptivity ,Reflectivity ,law.invention ,Optics ,law ,Optoelectronics ,business ,DC bias - Abstract
A novel active metasurface is proposed in this paper. The proposed metasurface can be electronically switched between the reflection and the absorption modes by a tunable component, such as a PIN diode. When the PIN diode is in the on-state, the proposed metasurface exhibits near-perfect absorptivity at 10 GHz. On the other hand, when the PIN diode is in the off-state, the proposed metasurface exhibits near-perfect reflectivity over a wide bandwidth at 10 GHz. A unit cell is designed to include a DC bias network, which yields reliable performance.
- Published
- 2014
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