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NFC antenna module and NFC module including the same

  • US 9,800,294 B2
  • Filed: 12/23/2014
  • Issued: 10/24/2017
  • Est. Priority Date: 12/23/2013
  • Status: Active Grant
First Claim
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1. A near field communication (NFC) module comprising:

  • an NFC controller including an NFC transmitter, an NFC receiver and an NFC card;

    a matching circuit including a transmitter interface connected to the NFC transmitter, a receiver interface connected to the NFC receiver and a card interface connected to the NFC card; and

    an antenna module including a first terminal, a second terminal, an antenna connected to the first and second terminals, and a resonance unit, the antenna module configured to be directly connectable to the matching circuit via the first and second terminals and detachable from the matching circuit, and the resonance unit integrated as part of the antenna module,wherein the resonance unit is connected to the first and second terminals and includes a first passive device, a value of the first passive device being such that a resonance frequency between the first and second terminals is in a predetermined frequency range.

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