| 摘要 |
PROBLEM TO BE SOLVED: To provide an NFC antenna using dual resonance which increases a recognition distance of the NFC antenna by using the dual resonance.SOLUTION: The present invention relates to a Near Field Communication (NFC) antenna using dual resonance. A relay unit where a closed circuit is formed by a capacitor and a loop antenna is attached to a portable terminal. The relay unit relays a signal transmitted by a reader to an NFC antenna unit, and relays a signal transmitted through the NFC antenna unit from the NFC chip to the reader, thereby increasing a recognition distance within which the reader recognizes the NFC chip to obtain information. |
