Dual band RFID device and method of formation
AssigneeAvery Dennison Retail Information Services LLC
InventorIan James Forster
Life of this patent
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Abstract
A dual band antenna device and method of formation is provided. In one embodiment, the method comprises providing a planar conductive sheet; forming a slot antenna in the conductive sheet; the slot antenna configured to communicate at a first frequency; forming a multi-turn antenna in the conductive sheet; the multi-turn antenna configured to communicate in a second frequency that is different from the first frequency; and connecting at least one integrated circuit to said first antenna and said second antenna; enclosing said first antenna, said second antenna, and said at least one integrated circuit in a wearable enclosure.
Claims13
A dual band antenna device, comprising:
- a planar conductive sheet;
- a slot antenna formed in the conductive sheet;
- said slot antenna configured to communicate at a first frequency;
- an HF inlay and an UHF inlay;
- where at least a portion of the HF inlay is under the UHF inlay;
- a multi-turn antenna formed in the conductive sheet;
- said multi-turn antenna configured to communicate in a second frequency that is different from the first frequency, wherein the multi-turn antenna appears as a solid plane at UHF frequencies and forms a portion of said slot antenna;
- and
- one or more integrated circuits connected to said multi-turn antenna and said slot antenna;
- a material connected to one of said one or more integrated circuits;
- and
- wherein said material is configured to cause said one of said one or more integrated circuits to store information in a memory in response to application of a predetermined pressure.
Dependencies are inferred from the claim text.