×

Antenna coil, resonant antenna having antenna coil, and card type wireless device having resonant antenna

  • US 20060283948A1
  • Filed: 06/20/2006
  • Published: 12/21/2006
  • Est. Priority Date: 06/20/2005
  • Status: Abandoned Application
First Claim
Patent Images

1. An antenna coil comprising:

  • an air-core type flat coil body having a ring shape; and

    a coil case having a ring shape corresponding to the ring shape of the coil body, wherein the coil case includes a coil accommodation space for accommodating the coil body, the coil accommodation space is disposed in a circumferential direction of the ring shape of the coil case, the coil body includes a plurality of unit coils, each of which has a same winding direction and a same number of turns, and the unit coils are connected in parallel each other.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×