RFID System
AssigneeDEKA Products Limited Partnership
InventorDavid Blumberg, JR.
Life of this patent
Estimating the term…
Abstract
A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device.
Claims18
An RFID antenna assembly configured to be energized with a carrier signal, the RFID antenna assembly comprising:
- an inductive component, wherein the inductive component is configured to be positioned proximate a first slot assembly to detect the presence of a first RFID tag assembly within the first slot assembly and not detect the presence of a second RFID tag assembly within a second slot assembly that is adjacent to the first slot assembly.
An RFID antenna assembly configured to be energized with a carrier signal, the RFID antenna assembly comprising:
- an inductive component including a multi-segment loop antenna assembly, wherein the multi-segment loop antenna assembly includes:
- at least a first antenna segment;
- at least a second antenna segment including at least a second phase shift element configured to reduce the phase shift of the carrier signal within the at least a second antenna segment,
- wherein the length of each antenna segment is no more than 25% of the wavelength of the carrier signal;
- and
- at least one matching component configured to adjust the impedance of the multi-segment loop antenna assembly.
An RFID antenna assembly configured to be energized with a carrier signal, the RFID antenna assembly comprising:
- an inductive component including a multi-segment loop antenna assembly, wherein the multi-segment loop antenna assembly includes:
- at least a first antenna segment;
- and
- at least a second antenna segment including at least a second phase shift element configured to reduce the phase shift of the carrier signal within the at least a second antenna segment,
- wherein the length of each antenna segment is no more than 25% of the wavelength of the carrier signal;
- and
- at least one matching component configured to adjust the impedance of the multi-segment loop antenna assembly.
Dependencies are inferred from the claim text.