A tunable metamaterial microwave absorber inspired by chameleon’s color-changing mechanism
University of California, Berkeley · Korea University
Abstract
A metamaterial absorber capable of swiftly altering its electromagnetic response in the microwave range offers adaptability to changing environments, such as tunable stealth capabilities. Inspired by the chameleon's ability to change color through the structural transformation of photonic lattice crystals, which shift the bandgaps of reflection and transmission of visible light, we designed a crisscross structure that transforms from an expanded to a collapsed form. This transformation enables a switch between broadband absorption and peak transmission in the microwave range (4 to 18 gigahertz). The structure, optimized through data-driven design, is mechanically actuated by the rotation of interlinked…
Citation impact
- FWCI
- 16.42
- Percentile
- 100%
- References
- 48
Authors
6Topics & keywords
- Metamaterial
- Microwave
- Mechanism (biology)
- Metamaterial absorber
- Optoelectronics
- Computer science
- Materials science
- Optics