A switchable dual-function metamaterial broadband absorber / beam deflector
By introducing VO2 patterned layers and metal patterned layers into metamaterial structures, and utilizing the temperature change of VO2 to switch between insulating and metallic states, flexible switching between broadband absorption and beam deflection is achieved. This solves the functional integration and switching problems in existing technologies and has significant application value.
CN115693168BActive Publication Date: 2026-07-14SHANXI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANXI UNIV
- Filing Date
- 2022-11-09
- Publication Date
- 2026-07-14
Smart Images
Figure CN115693168B_ABST
Abstract
The application discloses a switchable dual-function metamaterial broadband absorber / beam deflector and belongs to the technical field of metamaterial broadband absorbers and beam deflectors. The application designs a dual-function metamaterial broadband absorber / beam deflector based on VO2, which comprises a VO2 pattern layer, a first dielectric layer, a metal pattern layer, a continuous VO2 layer, a second dielectric layer and a metal reflecting plate from top to bottom. The dual functions of efficient broadband absorption and beam deflection are integrated in one metamaterial structure, and the flexible switching of the functions is realized by changing the temperature of VO2. At room temperature, vanadium dioxide is in an insulating state, electromagnetic waves are electromagnetically responded to the metamaterial to realize perfect absorption; when the temperature is increased to 340K, VO2 is in a metallic state, and the reflected beam can be deflected after the incident wave passes through the metamaterial. The application can freely control the working mode by changing the temperature, has simple structure, high integration degree and a wider application prospect.
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