| US 7,543,316 B2 | ||
| Antenna designs for radio frequency identification tags | ||
| Michael R. Arneson, Westminister, Md. (US); William R. Bandy, Gambrills, Md. (US); Wayne Shanks, Baltimore, Md. (US); and Hai Tran, Aldie, Va. (US) | ||
| Assigned to Symbol Technologies, Inc., Holtsville, N.Y. (US) | ||
| Filed on Mar. 31, 2006, as Appl. No. 11/393,887. | ||
| Application 11/393887 is a continuation of application No. 10/866151, filed on Jun. 14, 2004, granted, now 7,404,199. | ||
| Claims priority of provisional application 60/477735, filed on Jun. 12, 2003. | ||
| Prior Publication US 2006/0174257 A1, Aug. 03, 2006 | ||
| Int. Cl. G11B 7/24 (2006.01) | ||
| U.S. Cl. 720—718 | 10 Claims |
| 1. A radio frequency identification (RFID) tag antenna comprising:
a first arm formed on a substrate;
a second arm formed on the substrate;
a third arm formed on the substrate;
a fourth arm formed on the substrate, wherein the first, second, third and fourth arms extend radially from a central location;
a fifth arm formed on the substrate;
a sixth arm formed on the substrate, wherein the fifth and sixth arms extend from opposite sides of the third arm;
a seventh arm formed on the substrate; and
an eighth arm formed on the substrate, wherein the seventh and eighth arms extend from opposite sides of the fourth arm, wherein
each forms a 90° angle with each adjacent arm.
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