When subjected to flexing

conventional metallic structures can crease

fatigue

and eventually fail mechanically with a catastrophic loss of conductivity and functionality. A flexible frequency reconfigurable coplanar waveguide-fed (CPW) antenna consisting of four split-ring resonators (SRRs) with different radii is presented to solve the problem. The SU-8 negative mold structure is fabricated with microfluidic channel by ultraviolet lithography (UV lithography)

and then the PDMS (PolyDiMethylSiloxane) is used to cast for the SU-8 microfluidic to obtain a PDMS positive mold structure. Finally

the liquid metal alloy was injected into the microfluidic channels of PDMS. Changing the pass state of the SRRs by mechanical pressure

the antenna can be reconstructed at multiple frequencies within the range of 1GHz~6GHz. The proposed antenna can meet the communication requirement of WLAN

Wi-MAX and C-band. The combined properties of the fluid and the elastomeric substrate result in a flexible and durable antenna that is well suited for simple means of integrating electronic devices on curved surfaces

such as wearable devices and artificial skins.