Ruggedized RFID tag and reader
OwnerMartin S. Casdeninventor
Life of this patent
Estimating the term…
Abstract
A radio frequency identification (RFID) transponder tag is contained in and electrically connected to a mechanically rugged metallic tag housing slotted to define a radio frequency antenna, such as a half turn antenna, and sealed with an epoxy filling.
Claims22
A radio frequency identification tag reader including radio frequency transmitter and receiver circuits, said circuits having at least one radio frequency receiver input, said tag reader having a front, a metal plate covering said front and one side of said metal plate being exterior to said tag reader, said metal plate being cut to define one or more antenna loops integral with said plate and having points thereon electrically connected to said least one radio frequency receiver input for receiving radio frequency energy from said antenna loops, said metal plate also providing an exterior front cover of an enclosure for said circuits.
The reader of claim 8 wherein said reader housing has a housing front and housing walls forming a single piece metal housing.
A radio frequency identification tag reader having radio frequency circuits with at least one radio frequency receiver input and a reader housing, said housing including a housing front and a plurality of housing walls, said housing front and said housing walls forming a one piece housing, an exterior metal plate of said housing being cut to define one or more antenna loops integral with said housing and having points thereon electrically connected to said least one radio frequency receiver input of said circuits for receiving radio frequency energy from said one or more antenna loops.
In combination, a housing made of electrically conductive material defining a radio frequency antenna integral with said housing, said housing containing radio frequency circuits responsive to RFID signals received by said antenna.
A RFID tag comprising a metal tag housing slotted to define a half turn antenna and a RFID transponder in said tag housing operatively connected with said antenna.
A RFID tag, comprising:
- a tag housing at least partially of electrically conductive material shaped and configured to define a radio frequency antenna integral with said housing;
- a RFID transponder circuit contained in said tag housing;
- and
- a matching circuit for operatively interconnecting said transponder with said antenna.
Dependencies are inferred from the claim text.