Far field RF power extraction circuits and systems
Author(s)Mandal, Soumyajit, 1979-
Far field radio frequency power extraction circuits and systems
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
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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 devices.
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.Includes bibliographical references (p. 195-199).
DepartmentMassachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology
Electrical Engineering and Computer Science.