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Flexible inkjet-printed sensor platforms fabricated on flexible substrates are demonstrated to be a sustainable economical solution for 2D “Zero-Power” sensing and active energy harvesting applications as well as multilayer 3D structures and complete radar systems. Several designs featuring the advantages, challenges and prospects of inkjet printing technology are presented. These designs demonstrate...
A novel design of a highly sensitive wireless passive radio frequency strain transducer is presented based on a patch antenna loaded with an open loop that is capable of sensing strain remotely. The new idea of utilizing a cantilever at the gap of the open loop significantly improves the sensitivity of resonant frequency shifts. In measurements, the prototypes achieve a sensitivity of 1.26% frequency...
A highly sensitive wireless passive radio frequency strain transducer is designed and developed based on a patch antenna loaded with an open loop. A novel idea of utilizing a cantilever at the gap of the open loop significantly improves the sensitivity of resonant frequency shifts. The ground plane allows the sensitivity of the sensor to be independent from the applied surface. A proof-of-concept...
A novel wireless and passive temperature sensor that utilizes microfluidic and liquid metal technologies for the temperature-dependent modification of the sensor's radar echo is introduced. Liquid metal is used to dynamically alter the number of antenna elements activated along a linear array configuration with respect to temperature. In this way, the sensed temperature value can be accurately quantified...
In this paper, the new and latest results relative to theoretical and experimental studies of an original passive electromagnetic micro-sensor for wireless pressure monitoring application are presented. This micro-sensor uses the electromagnetic transduction principle. The sensing element is a flexible high resistivity silicon membrane located above a coplanar quarter-wavelength resonator operating...
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