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Novel Design of a Highly Sensitive RF Strain Transducer for Passive and Remote Sensing in Two Dimensions
IEEE transactions on microwave theory and techniques
A novel design of a highly sensitive wireless passive RF strain transducer is presented based on a patch antenna loaded with an open loop that is capable of sensing strain independently in two directions. An original idea of utilizing a cantilever at the gap of the open loop significantly improves the sensitivity of resonant frequency shifts. The frequency shifts in two distinct resonant modes are detected based on two dominant orthogonal modes of the patch resonators. In measurements, thedoi:10.1109/tmtt.2013.2243751 fatcat:6musl4b2lrhbpjz2s55heogbtq