Impedance Characterization of RFID Tag Antennas and Application in Tag Co-Design

@article{Qing2009ImpedanceCO,
  title={Impedance Characterization of RFID Tag Antennas and Application in Tag Co-Design},
  author={Xianming Qing and C. K. Goh and Zhi Ning Chen},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2009},
  volume={57},
  pages={1268-1274}
}
In this paper, an experimental methodology for the characterization of the impedance of balanced RF identification (RFID) tag antennas is presented, and the application of the proposed method in RFID tag co-design is demonstrated. The balanced tag antenna is considered as a two-port network and the impedance of the antenna is characterized using network parameters. In the measurement, the antenna is connected to the two ports of a vector network analyzer through a test fixture. The influence of… CONTINUE READING
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