Strain sensors with wide-range stretchability, good sensitivity, high gauge factor, and reliability are needed for several applications. Herein, stretchable strain capable of operating over multi-strain range having an excellent factor presented. The systematic study, carried out different combinations elastomer, conductive filler, graphene–carbon paste (GCP), revealed that the exhibit stretcha...

This paper presents a through-type harmonic transponder for S-band nonlinear radar. To increase the operating frequency range, 2-stage L-shaped matching network was configured input and output networks. In previous studies, conventional transponders were with λ/4 stubs in networks to minimize influence of these because impedance mismatch suppresses second fundamental signals. However, this desi...