Optimization of the RFID tag antenna by load pull

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  • ロードプルによるRFIDタグアンテナの最適化
  • ロードプル　二　ヨル　RFID　タグ　アンテナ　ノ　サイテキカ

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In this paper, we measured the impedance of RFID tag IC by load pull measurement, and compared with the impedance measurement using NWA (Net Work Analyzer).In the circuit containing a nonlinear element, an operating point changes by factors, such as change of input electric power, and internal resistance of a measuring instrument. Therefore, the load pull measurement which can measure the characteristic in the state where the element is actually operating is advantageous.

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