Dual frequency hf-uhf identification integrated circuit
AssigneeEM Microelectronic-Marin SA
InventorThomas COULOT
Life of this patent
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Abstract
A dual frequency HF-UHF RFID integrated circuit including a power supply. The power supply includes: an HF branch including an HF rectifier and a linear voltage regulator, wherein the HF rectifier is configured to be connected to a resonance circuit formed by a HF antenna-coil and a resonance capacitor and wherein the HF rectifier is connected to the linear voltage regulator; a UHF branch including a UHF rectifier and a shunt voltage regulator, wherein the UHF rectifier has a charge pump and is configured to be connected to a UHF antenna and wherein the UHF rectifier is connected to the shunt voltage regulator; and a supply line, wherein the linear voltage regulator and the shunt voltage regulator are both connected to the supply line of the power supply.
Claims11
A dual frequency HF-UHF RFID integrated circuit comprising a power supply, the power supply comprising:
- an HF branch comprising an HF rectifier and a linear voltage regulator, wherein the HF rectifier is configured to be connected to a resonance circuit formed by a HF antenna-coil and a resonance capacitor and wherein the HF rectifier is connected to the linear voltage regulator;
- a UHF branch comprising a UHF rectifier and a shunt voltage regulator, wherein the UHF rectifier comprises a charge pump and is configured to be connected to a UHF antenna and wherein the UHF rectifier is connected to the shunt voltage regulator;
- and
- a supply line;
- wherein the linear voltage regulator and the shunt voltage regulator are both connected to the supply line of the power supply.
Dependencies are inferred from the claim text.