Battery-assisted backscatter RFID transponder
First Claim
1. A method for using a radio frequency (RF) transponder comprising a flexible substrate supporting a battery for operating the transponder and an antenna adapted to backscatter RF interrogation radiation that is transmitted from an interrogation device;
- the method comprising;
bending the substrate so that the battery is oriented in a first plane and the antenna is oriented in a second plane different from the first plane; and
attaching the substrate to adjacent surfaces of an object so as to wrap the transponder around a corner of the object.
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Accused Products
Abstract
A radio frequency transponder includes at least one battery, which is coupled to provide electrical power for operating the transponder and at least one antenna, which is configured to receive and backscatter RF interrogation radiation from an interrogation device. An integrated circuit is arranged to store a code including information and, powered only with energy provided by the battery, to vary a radiation characteristic of the antenna responsively to the code so as to modulate the information onto the backscattered radiation.
144 Citations
20 Claims
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1. A method for using a radio frequency (RF) transponder comprising a flexible substrate supporting a battery for operating the transponder and an antenna adapted to backscatter RF interrogation radiation that is transmitted from an interrogation device;
- the method comprising;
bending the substrate so that the battery is oriented in a first plane and the antenna is oriented in a second plane different from the first plane; and attaching the substrate to adjacent surfaces of an object so as to wrap the transponder around a corner of the object.
- the method comprising;
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2. A method for manufacturing a radio frequency (RF) transponder, comprising:
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providing a substrate; applying on the substrate an antenna suitable for backscattering radio-frequency (RF) radiation; applying an integrated circuit (IC) to the substrate, and coupling the IC to vary a radiation characteristic of the antenna so as to modulate information onto the backscattered radiation; and printing a battery on the surface of the substrate by printing one or more battery layers in at least one of a co-facial configuration and a co-planar configuration using respective inks comprising battery layer materials, so as to provide electrical power for powering the transponder. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for manufacturing a radio frequency (RF) transponder, comprising:
- providing a substrate;
applying on the substrate an antenna suitable for backscattering radio-frequency (RF) radiation;
applying an integrated circuit (IC) to the substrate, and coupling the IC to vary a radiation characteristic of the antenna so as to modulate information onto the backscattered radiation; and
printing a battery on the surface of the substrate, so as to provide electrical power for powering the transponder, wherein printing the battery comprises printing one or more battery layers in at least one of a co-facial configuration and a co-planar configuration using respective inks comprising battery layer materials and wherein printing the battery comprises;
forming a first battery assembly comprising;
printing a first electrode layer on the surface of the substrate;
applying an electrolyte on the first electrode layer; and
applying a separator layer on the electrolyte of the first electrode layer;
forming a second battery assembly comprising;
printing a second electrode layer of opposite polarity to the first electrode layer on a second substrate; and
applying the electrolyte on the second electrode layer; and
joining together the first battery assembly and second battery assembly so that the layers are stacked and the electrolyte of the second electrode layer is in co-facial contact with the separator layer.
- providing a substrate;
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20. A method for manufacturing a radio frequency (RF) transponder, comprising:
- providing a substrate;
applying on the substrate an antenna suitable for backscattering radio-frequency (RF) radiation;
applying an integrated circuit (IC) to the substrate, and coupling the IC to vary a radiation characteristic of the antenna so as to modulate information onto the backscattered radiation; and
printing a battery on the surface of the substrate, so as to provide electrical power for powering the transponder;
wherein providing the substrate includes forming the substrate so as to be suitable for attaching around a corner of an object so that the battery is oriented in a first plane and the antenna is oriented in a second plane different from the first plane.
- providing a substrate;
Specification