×

Radio frequency IC tag and method for manufacturing the same

  • US 7,405,664 B2
  • Filed: 02/09/2005
  • Issued: 07/29/2008
  • Est. Priority Date: 06/11/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A radio frequency IC tag comprising:

  • an IC chip having information stored thereon for transmission; and

    an antenna serving to radiate by electromagnetic transmission the information that is stored on the IC chip;

    wherein;

    in said antenna, a power-feeding part equipped with the IC chip has a longitudinal axis along a direction in which an electric current flows, and radiation parts are formed so that a width of said radiation parts becomes wider than that of the power-feeding part with respect to the longitudinal axis of the power-feeding part, said radiation parts extending from the power-feeding part at both sides thereof along the direction in which the electric current flows, the power feeding part being provided with an L-shaped slit for attaining an impedance matching between said IC chip and said antenna, and each of terminals of said IC chip being connected to each end of said power feeding part across said L-shaped slit.

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