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.
Claims16
In combination, an RFID tag housing having a plurality of at least partially electrically conductive housing portions, said housing portions shaped and configured and electrically connected to jointly define a radio frequency radiating antenna including a pair of antenna lobes formed integrally with a first and a second of said housing portions, an RFID transponder circuit contained between and mechanically protected by said housing portions, and an antenna matching circuit having a pair of outputs each electrically connected to a corresponding one of said antenna lobes operatively connecting said transponder circuit with said antenna.
A ruggedized RFID tag, comprising first and second electrically conductive housing portions mechanically and electrically joined along an edge thereof and containing therebetween an RFID transponder circuit, said housing portions being divided by a slot extending partially along a longitudinal direction thereof and open at one end of each housing portion to define two antenna lobes, said transponder circuit including a pair of antenna outputs each operatively connected for driving a corresponding one of said antenna lobes.
A ruggedized RFID tag comprising:
- a tag housing including top and bottom electrically conductive housing portions mechanically joined and electrically connected to each other, said portions divided by one or more slots for defining antenna lobes of a radio frequency antenna;
- electrically insulating material in said one or more slots for closing each said slot against entry of foreign matter into said housing;
- an electrically insulating substrate between said housing portions, an RFID transponder module supported on said substrate including antenna outputs of said transponder module each connected to a corresponding one of said antenna lobes for receiving and transmitting RFID signals by way of said antenna.
Dependencies are inferred from the claim text.