Encoding module, associated encoding element, connector, printer-encoder and access control system

摘要

An encoding module and related systems and components are provided. The encoding module includes a plurality of encoding elements arranged in an array of columns and rows and one or more switching elements configured to selectively connect the encoding elements to a reader. The connection of the encoding elements may be based on the location of a targeted transponder disposed among multiple adjacent transponders to ensure the selective communication with the targeted transponder only. The module is configured for various types and locations transponders to be used within a system, such as a printer-encoder. Each encoding element may include a loaded conductive strip comprising a loop shape portion and a shield that corresponds to the loop shape portion. In another embodiment, an access control system having an encoding module with the plurality of couplers and an access card having a plurality of transponders corresponding to the couplers is provided.

主权项

1. An encoding element, comprising:
a first conductive layer; a first dielectric substrate disposed adjacent to the first conductive layer; a second dielectric substrate; a shield disposed adjacent to the second dielectric substrate; and a conductive strip disposed between the first dielectric substrate and the second dielectric substrate, wherein:
the conductive strip includes a loop shape;the first dielectric substrate electrically separates the conductive strip from the first conductive layer;the conductive strip and the first conductive layer define a transmission line configured to generate magnetic fields concentrated in a near field region of the transmission line when an electrical signal is passed through the conductive strip;the second dielectric substrate electrically separates the conductive strip from the shield;the shield includes a split-ring shape corresponding to the loop shape of the conductive strip; andthe split-ring shape of the shield and the loop shape of the conductive strip are concentric with each other.