Corpus ID: 18888382

UHF RFID Transponder Chip and Antenna Impedance Measurements

  title={UHF RFID Transponder Chip and Antenna Impedance Measurements},
  author={J. Grosinger and C. Mecklenbraeuker and A. Scholtz},
The communication performance between reader and transponder in radio frequency identification (RFID) in the ultra high frequency (UHF) range strongly depends on the matching between transponder chip and transponder antenna. To assure power optimization in the forward link the input impedance of the antenna must be the complex conjugate of the chip’s input impedance. In this contribution a measurement method is introduced to determine the transponder chip’s input impedance in absorbing mode… CONTINUE READING
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