| 摘要 |
<p>The invention relates to an RFID/NFC antenna circuit, comprising an antenna (L) made up of at least three turns (S) on a substrate, the antenna having a first end terminal (D) and a second end terminal (E), two access points (1, 2) for connecting a charge, a tuning capacitor (C1) at a prescribed tuning frequency, a tap (A) connected to the antenna (L) and separate from the terminals (D, E), a means (CON1A) for connecting the tap (A) to the terminal (1), and a means (CON2E) for connecting the end terminal (E) to the capacitor terminal (C1E). According to the invention, third means (CON31, CON32) are provided for connecting the capacitor terminal (C1X) and the second access terminal (2) to a first point (P1) of the antenna (L) and to a second point (P2) of the antenna (L) connected to the first point of the antenna (L) by at least one turn (S) of the antenna (L), respectively.</p> |
