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On page 1840, J.‐Y. Lee, I.‐K. Oh and co‐workers present a tunable frequency selective surface that selectively transmits incident electromagnetic waves in a designed frequency band. This surface was newly developed utilizing highly stretchable silver‐nanowire electrodes and pre‐stretched dielectric elastomer with a butterfly‐shaped aperture pattern.
An active, frequency selective surface utilizing a silver‐nanowire‐coated dielectric elastomer with a butterfly‐shaped aperture pattern is realized by properly exploiting the electroactive control of two antagonistic functions (stretching vs compression) on a patterned dielectric elastomer actuator.
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