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PASSIVE WIRELESS SENSOR INCLUDING PIEZOELECTRIC MEMS RESONATOR
PASSIVE WIRELESS SENSOR INCLUDING PIEZOELECTRIC MEMS RESONATOR
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机译:包括压电MEMS谐振器的无源无线传感器
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摘要
A passive wireless sensor includes a substrate having at least one Microelectromechanical system (MEMS) piezoelectric resonator thereon. The MEMS piezoelectric resonator includes a piezoelectric layer between a top metal or semiconductor layer (top electrode layer) and a bottom metal or semiconductor layer (bottom electrode layer). The top electrode layer is a patterned top electrode layer including at least a first electrode for sensing an electrical signal and a second electrode for providing a ground reference. An antenna is connected to the first and/or second electrode for wirelessly transmitting the electrical signal and for receiving a wireless interrogation signal.
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