Antennas for object identifiers in location systems

An object identifier for identifying a location of an object in a location system, the object identifier comprising:

• a folded loop antenna formed to have at least a first loop plane and a second loop plane,
• wherein the first loop plane is extended and folded to form the second loop plane,
• wherein the object identifier is attached to the object and radiates a signal including information on the location of the object.

A location system for determining a location of an object, the location system comprising:

• an object identifier coupled to the object for transmitting a signal;
• a location determining module for receiving the signal transmitted from the transmitter,
• wherein the object identifier includes a horizontal circuit board formed on a first plane for a circuitry of the object identifier and a vertical loop antenna formed on a second plane, wherein the first plane is substantially perpendicular to the second plane.

A location system for determining a location of an object, the location system comprising:

• an object identifier coupled to the object for transmitting a signal;
• a location determining module for receiving the signal transmitted from the transmitter,
• wherein the object identifier includes a folded loop antenna formed to have at least a first loop plane and a second loop plane, wherein the first loop plane is extended and folded to form the second plane, and the first and second loop planes are substantially perpendicular to a surface of the object where the object identifier is placed.