Near field coupling devices and associated systems and methods
First Claim
1. A radio frequency (RF) system, comprising:
- a near field coupler configured to transmit a near field effect at a transponder operating region to communicate with a targeted transponder of a carrier substrate when the targeted transponder is moved to the transponder operating region;
a media conveyance configured to move the carrier substrate through the transponder operating region;
a sensor to detect a justification of the targeted transponder; and
a logic circuit to configure an impedance of the near field coupler based on the justification of the targeted transponder.
7 Assignments
0 Petitions
Accused Products
Abstract
A near-field coupling device that may facilitate communications with a transponder is provided. The near-field coupling device may include a ground plane, a dielectric substrate, one or more conductive strips and a terminating load. The conductive strips together with the ground planes form coupling elements. The near-field coupling device further includes one or more switching elements for selectively connecting and disconnecting the coupling elements with a transceiver. The connected coupling elements define a total characteristic impedance. Using the switching element, the ratio between the total characteristic impedance of the connected coupling elements and the terminating load may be changed in order to adjust the distribution of an electromagnetic field along the coupling elements according to the type and position of the transponder to be processed.
28 Citations
20 Claims
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1. A radio frequency (RF) system, comprising:
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a near field coupler configured to transmit a near field effect at a transponder operating region to communicate with a targeted transponder of a carrier substrate when the targeted transponder is moved to the transponder operating region; a media conveyance configured to move the carrier substrate through the transponder operating region; a sensor to detect a justification of the targeted transponder; and a logic circuit to configure an impedance of the near field coupler based on the justification of the targeted transponder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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moving a carrier substrate through a transponder operating region; and identifying, using a sensor, a justification of a targeted transponder of the carrier substrate; configuring, using a logic circuit and based on the identified justification, an impedance of a near field coupler; and transmitting, using the near field coupler, a near field effect at the transponder operating region to communicate with a targeted transponder of the carrier substrate when the targeted transponder is moved to the transponder operating region. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An RF system, comprising:
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a near field coupler configured to transmit a near field effect defining a transponder operating region, the near field coupler including coupling elements; a media conveyance mechanically secured with the near field coupler and configured to move a plurality of transponders through the transponder operating region such that a non-targeted transponder is outside of transponder operating region when a targeted transponder is moved to the transponder operating region; a sensor to identify a justification of the plurality of transponders; and a logic circuit to configure an impedance ratio of the coupling elements based on the justification of the plurality of transponders. - View Dependent Claims (20)
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Specification