High-performance Dual-band Wireless Capacitive Pressure Sensor
نویسندگان
چکیده
This paper presents the design of a high-performance dualband wireless capacitive pressure sensor operating in harsh environment. The proposed design is composed of an absolute capacitive pressure sensor, pressure controlled oscillator (PCO), class-E power amplifier (PA) and an antenna. The sensor node collects and transmits the pressure variation in the term of frequency output wirelessly to a nearby base station. Simulation results show that the low frequency band can be tuned from 2.1 to 2.6 GHz while the high frequency band ranging from 4.6 to 5.1 GHz in a pressure range from 5 to 10 MPa with total output power from 16 to 14 dBm at 0.35μm CMOS technology.
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