Kirigami‐Enabled, Passive Resonant Sensors for Wireless Deformation Monitoring

A passive resonant sensor with kirigami patterning is presented to wirelessly report material deformation in closed systems. The sensors are fabricated from copper‐coated polyimide by etching a conductive Archimedean spiral and then laser cutting kirigami patterns. The sensor response is defined as the resonant frequency in the transmission scattering parameter signal ( S 21 ), which is captured via a benchtop vector network analyzer. The...