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Far field radio frequency power extraction circuits and systems

By 1979- Soumyajit Mandal


In this thesis, I describe efficient methods for extracting DC power from electromagnetic radiation. This will become an important necessity for a number of applications involving remotely powered devices, such as Radio Frequency Identification (RFID) tags and bionic implants. I first investigate the problem abstractly, allowing theoretical bounds on system performance to be derived. Next I devise circuit, antenna and impedance matching network design strategies to efficiently approach these theoretical bounds. Finally, I use these strategies to create an experimental power extraction system that collects RF power at low electromagnetic field strengths. This system enables a substantial increase in the operating range of remotely powered Soumyajit Mandal.Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.Includes bibliographical references (p. 195-199)

Topics: Electrical Engineering and Computer Science.
Publisher: Massachusetts Institute of Technology
Year: 2004
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Provided by: DSpace@MIT
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