24 October 2000 Novel circuit concept for PSK-demodulation in passive telemetric systems
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Proceedings Volume 4228, Design, Modeling, and Simulation in Microelectronics; (2000); doi: 10.1117/12.405410
Event: International Symposium on Microelectronics and Assembly, 2000, Singapore, Singapore
Abstract
A PSK-demodulator for a bi-directional data transmission in passive telemetric microsystems is presented in this work. These systems, which use the telemetry link for energy and data transmission, are based on identification systems, which use ASK-modulation for both data transfer directions. This leads to problems with a bi-directional data transmission in sensor applications, where the power consumption is significantly higher than in identification systems. A system which uses a PSK to transfer data into the microsystem to improve the energy transfer during data transmission is presented. The key component of this system is a novel PSK-demodulator, which works without an internal oscillator a d therefore no PLL is needed. The major advantages of the presented systems are the self adaptation to the carrier frequency and the independence of the demodulator of parameter drifts.
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Claudia Marschner, Sven Rehfuss, Dagmar Peters, Hilmar Bolte, Rainer Laur, "Novel circuit concept for PSK-demodulation in passive telemetric systems", Proc. SPIE 4228, Design, Modeling, and Simulation in Microelectronics, (24 October 2000); doi: 10.1117/12.405410; https://doi.org/10.1117/12.405410
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KEYWORDS
Data transmission

Capacitors

Microsystems

Modulation

Sensors

Phase shift keying

Transmitters

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