Reusable, hermetic, medical grade rfid tag

G - Physics – 06 – K

Patent

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Details

G06K 19/07 (2006.01)

Patent

CA 2700876

An RFID tag includes a circuit board assembly having a circuit board, an RFID circuit, an antenna, and a metallic ground plane. The circuit board has a first side and a second side. The circuit board carries the antenna on the first side and the ground plane on the second side. The RFID circuit is coupled with each of the antenna and the ground plane. A backplane is coupled with the ground plane, on a side of the ground plane opposite the circuit board. An overmolded housing surrounds and hermetically seals the circuit board assembly. The housing is comprised of a material which is both autoclavable and has a low dielectric constant of between approximately 1 to 5.

L'invention concerne une étiquette d'identification par radiofréquence (RFID) comprenant un ensemble carte à circuit ayant une carte à circuit, un circuit RFID, une antenne, et un plan à la terre métallique. La carte à circuit a une première face et une seconde face. La carte à circuit supporte l'antenne sur la première face et le plan à la terre sur la seconde face. Le circuit RFID est couplé à la fois au plan à la terre et à l'antenne. Un plan arrière est couplé au plan à la terre, sur une face du plan à la terre opposé à la carte à circuit. Un boîtier surmoulé entoure et ferme hermétiquement l'ensemble carte à circuit. Le boîtier est constitué d'un métal qui à la fois peut passer à l'autoclave et avoir une faible constante diélectrique comprise entre approximativement 1 et 5.

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