Patent ID: 9390367
Filing Date: 2016-07-12
CPC Classification: G06K,H01Q

Claim Text:
1. A radio frequency identification (RFID) antenna, the RFID antenna having an antenna terminal, the antenna having an impedance at the antenna terminal, the RFID antenna comprising: a substrate; electrical conductors attached to the substrate, wherein the electrical conductors form first and second dipoles; and additional electrical conductors attached to the substrate, wherein the additional electrical conductors include only electrical conductors that are one of parallel and perpendicular to the electrical conductors that form the first and second dipoles, wherein the additional electrical conductors form a first feeder portion and a second feeder portion, wherein the first and second feeder portions are coupled to the antenna terminal, wherein the first feeder portion is also coupled to the first dipole at a first location and at a second location located a feeder length distance from the first location, and wherein the second feeder portion is also coupled to the second dipole at a third location and at a fourth location located the feeder length distance from the third location, wherein portions of the first dipole distal from the first feeder portion are ohmically coupled to respective corresponding portions of the second dipole distal from the second feeder portion, the first and second dipoles thereby forming a rectangle having a major axis, and wherein the impedance is determined, at least in part, by the feeder length distance.