Stretchable RF antenna sensors for conformal strain detection

Recently, wearable sensor systems for bio-medical applications such as human activity recognition or monitoring, biomedical clothing, and point-of-care medical devices have been tremendously spotlighted. This kind of wearable system should be attachable, flexible, or stretchable, skin-conformable, lightweight, comfortable and non-invasive for the user. Especially, mechanically stretchable wearable sensors for biomedical applications have been emerging to have extracorporeal sensing capability such as motion and strain detection. These sensors have been developed to help disabled people in need and athletes in game. For example, applications are found in real-time monitoring of athletes in play to protect them from severe damages and improve them in performance. Various types of highly conductive stretchable strain sensors have been demonstrated for applications such as human motion detection and tactile sensing.