Radio frequency identification tagging

A Radio Frequency Identification (RFID) tag or label comprising:

• a RFID tag module comprising an electronic identification circuit and a coupling means;
• and
• an antenna structure coupled to the coupling means,
• wherein the RFID tag module is separate from, separable or arranged to be severable from, the antenna structure, and wherein the antenna structure comprises a plurality of antenna elements.

A Radio Frequency Identification (RFID) tag or label comprising:

• a RFID tag module comprising an electronic identification circuit and a coupling means;
• and
• an antenna structure coupled to the coupling means,
• wherein the RFID tag module is separate from, separable or arranged to be severable from, the antenna structure, and wherein, in the absence of the antenna structure, the RFID tag module has a first operating frequency, and when the antenna structure is coupled to the coupling means the RFID tag or label has a second operating frequency, wherein the first operating frequency is different from the second operating frequency.

An object for use with a first Radio Frequency Identification (RFID) tag module, the object comprising an antenna structure which is integral with, or attached to, the object and which is arranged

• to improve the ability to communicate with the first RFID tag module, and/or
• to increase the range over which the first RFID tag module can be communicated with, and/or
• to improve the ability to communicate with the first RFID tag module in multiple directions
• when the first RFID tag module is used in combination with the object so as to form a first RFID tag or label, and
• when the object is used in combination with one or more further RFID tag modules so as to form one or more further RFID tags or labels, the antenna structure is arranged
• to improve the ability to communicate with the further RFID tag module(s), and/or
• to increase the range over which the further RFID tag module(s) can be communicated with, and/or
• to improve the ability to communicate with the further RFID tag module(s) in multiple directions.