The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
Graphene-enabled electrically switchable radar-absorbing surfaces
Open accessAbstract
Radar-absorbing materials are used in stealth technologies for concealment of an object from radar detection. Resistive and/or magnetic composite materials are used to reduce the backscattered microwave signals. Inability to control electrical properties of these materials, however, hinders the realization of active camouflage systems. Here, using large-area graphene electrodes, we demonstrate active surfaces that enable electrical control of reflection, transmission and absorption of microwaves. Instead of tuning bulk material property, our strategy relies on electrostatic tuning of the charge density on an atomically thin electrode, which operates as a tunable metal in microwave frequencies. Notably, we report large-area adaptive radar-absorbing surfaces with tunable reflection suppression ratio up to 50 dB with operation voltages <5 V. Using the developed surfaces, we demonstrate various device architectures including pixelated and curved surfaces. Our results provide a significant step in realization of active camouflage systems in microwave frequencies. Controlling the electrical properties of radar absorbing materials is required for active camouflage systems in the microwave. Here, Balci et al.use large-area graphene electrodes to demonstrate electrical control of microwave reflection, transmission and absorption by electrostatic tuning of the charge density.
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A Flexible Microwave Shield with Tunable Frequency‐Transmission and Electromagnetic Compatibility
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Metadata
- Authors
- Balci, O., Polat, E. O., Kakenov, N., & Kocabas, C.
- Venue
- Nature Communications
- Published
- 2015-03-20
- Volume
- 6
- Issue
- 1
- Pages
- 6628-6628
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2142492243
- Cited by
- 664
- References
- 27
- FWCI
- 12.15
- Type
- journal article
- Language
- en
- Open access
- gold
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