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RFID chip package and RFID tag

  • US 8,991,713 B2
  • Filed: 03/11/2013
  • Issued: 03/31/2015
  • Est. Priority Date: 01/14/2011
  • Status: Active Grant
First Claim
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1. An RFID chip package comprising:

  • an RFID chip including a voltage booster circuit and processing an RF signal in a UHF band; and

    a power supply circuit connected to the RFID chip and including at least one inductance element;

    whereina reactance component of an input/output impedance at an antenna-connecting input/output terminal of the power supply circuit is substantially 0Ω

    ;

    the RFID chip includes a balanced type input/output terminal including a first input/output terminal and a second input/output terminal;

    the power supply circuit includes a first terminal connected to the first input/output terminal, a second terminal connected to the second input/output terminal, a third terminal connected to a first connection portion of an antenna element, and a fourth terminal connected to a second connection portion of the antenna element; and

    the power supply circuit further includes a first inductance element connected between the first terminal and the second terminal and a second inductance element connected between the third terminal and the fourth terminal.

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