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US 8,102,021 B2Granted
RF devices
AssigneeSychip Inc.
InventorYinon Degani
Life of this patent
Estimating the term…
Abstract
A low cost passive RFID tag uses capacitive or inductive coupling between the RF IC chip and the antenna. Coupling elements are formed directly on the surface of the RF IC chip.
Claims8
RFID tag comprising:
- a) a substrate,
- b) an antenna formed on the substrate, the antenna comprising an antenna capacitor plate deposited on the substrate,
- c) an RF IC chip, the RF IC chip comprising at least one coupling capacitor plate deposited on a surface of the RF IC chip, the said surface of the RF IC chip bonded to the substrate and to the antenna so that the coupling capacitor overlies the antenna capacitor plate so as to electrically couple RF signals between the RF IC chip and the antenna,
- the RFID tag further including at least one supplemental capacitor plate between the RF IC chip and the coupling capacitor plate.
1 more element
Dependencies are inferred from the claim text.