Patent ID: 7982616

Claim:
A radio frequency identification (RFID) tag comprising: a loop antenna that includes: a first conductive portion having a length and width that substantially exceed a thickness of the first conductive portion, wherein the length and width of the first conductive portion substantially lie in a first plane; and a second conductive portion having a length and width that substantially exceed a thickness of the second conductive portion, wherein the length and width of the second conductive portion substantially lie in a second plane that is substantially parallel to the first plane, the second conductive portion being electrically coupled to the first conductive portion and configured to couple to a conductive surface of an article to which the RFID tag is attached; and an RFID circuit electrically connected to the loop antenna, wherein a current is excited through the loop antenna to flow through the first conductive portion, the second conductive portion, and the conductive surface of the article to which the RFID tag is attached in a current loop that lies in a third plane that is substantially perpendicular to the first plane and the second plane.