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|1. (WO2018125977) RFID TAGS WITH SHIELDING STRUCTURE FOR INCORPORATION INTO MICROWAVABLE FOOD PACKAGING|
|Applicants:||AVERY DENNISON RETAIL INFORMATION SERVICES, LLC
|Inventors:||FORSTER, Ian, J.
|Title:||RFID TAGS WITH SHIELDING STRUCTURE FOR INCORPORATION INTO MICROWAVABLE FOOD PACKAGING|
RFID tags are provided for incorporation into the packaging of a microwavable food item, with the RFID tag being configured to be safely microwaved. The RFID tag includes an antenna defining a gap and configured to operate at a first frequency. An RFID chip is electrically coupled to the antenna across the gap. A shielding structure is electrically coupled to the antenna across the gap and overlays the RFID chip. The shielding structure includes a shield conductor and a shield dielectric at least partially positioned between the shield conductor and the RFID chip. The shielding structure is configured to limit the voltage across the gap when the antenna is exposed to a second frequency that is greater than first frequency. The RFID tag includes an RFID chip and an antenna electrically coupled to the RFID chip.