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Monitoring of intracranial pressure (ICP) provides a life-saving diagnostic tool. We present a battery-free pressure sensing system for minimally invasive ICP monitoring. It comprises a cranially concealed wireless pressure sensor and on- and off-body external units. The sensor is based on a piezoresistive element and is inductively powered through an on-body unit. It is also equipped with a far-field...
This paper presents simulation-based optimization of an orthogonal-coil RF probe for miniature implantable pressure sensors. The geometric parameters of the orthogonal coils were optimized for the most efficient telemetry operation. In addition, impact of the operating frequency on sensitivity of the pressure measurement was investigated. The simulation results demonstrate that optimized orthogonal...
In this article, a procedure for printing and optimizing microwave antennas and passive circuits on low-cost fibrous paper substrates for green sensing and communication application is investigated. Inkjet-printing method is used to deposit a silver-nanoparticle-based conductive ink on a cardboard substrate. A surface treatment through the printing of a dielectric ink before the conductive deposition...
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