Radio-frequency energy harvesting circuit and communication device integrating such a radio-frequency energy harvesting circuit
AssigneeUwinloc
InventorJan Mennekens
Life of this patent
Estimating the term…
Abstract
A radio-frequency energy harvesting circuit includes an antenna suitable for receiving the radio-frequency energy, a converter suitable for converting the radio-frequency energy received into a direct current electrical voltage, the “RF/DC converter”, an electrical energy storage capacity and an interface circuit arranged between an output port of the RF/DC converter and the electrical energy storage capacity. The interface circuit is a passive electrical circuit including a resistive load placed in series between the output port of the RF/DC converter and the electrical energy storage capacity, the resistive load being of static value equal to or greater than 400 kilo-ohms.
Claims10
A radio-frequency energy harvesting circuit including an antenna arranged to receive radio-frequency energy, an RF/DC converter arranged to convert the radio-frequency energy received into a direct current electrical voltage, an electrical energy storage capacity and an interface circuit arranged between an output power of said RF/DC converter and said electrical energy storage capacity, wherein the interface circuit is a passive electrical circuit including a resistive load placed in series between the output port of the RF/DC converter and the electrical energy storage capacity, so that the RF/DC converter charges the electrical energy storage capacity through said resistive load, said resistive load being of static value equal to or greater than 400 kilo-ohms.
Dependencies are inferred from the claim text.