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This document discusses antenna design for RFID applications. It begins with an introduction to magnetic dipole antennas used for RFID tags due to the long wavelength of signals at 13.56 MHz. It then reviews the basic theory of how current in an antenna coil produces a magnetic field and induces a voltage in nearby coils. It provides equations to calculate the magnetic field from circular loop antennas and the induced voltage in tag antennas from the time-varying magnetic field of the reader antenna. Exampl
- Author
- iliefinis
- Language
- EN