License plate electronic tag

Abstract

The invention discloses a license plate electronic tag which comprises a metal layer, a dielectric layer and a chip arranged on the metal layer. The metal layer at least comprises a vibrator antenna located on the top layer of the license plate electronic tag, a conduction metal strip line located on the middle layer and a metal bottom plate located on the bottom layer. The dielectric layer at least comprises a first dielectric layer and a second dielectric layer; wherein the upper surface of the metal bottom plate is adjacent to the lower surface of the first dielectric layer, the upper surface of the first dielectric layer is adjacent to the lower surface of the conduction metal strip line, the upper surface of the conduction metal strip line is adjacent to the lower surface of the second dielectric layer, and the upper surface of the second dielectric layer is adjacent to the lower surface of the oscillator antenna; the oscillator antenna is connected with the conduction metal stripline; and the metal layer provided with the chip is covered with VHB glue. By the adoption of the electronic license plate, long-distance reading of the RFID can be achieved through large-area metalof the electronic license plate, meanwhile, the chip is damaged once the RFID on the license plate is detached, and the label can be effectively prevented from being transferred.

Description

technical field [0001] The invention relates to the technical field of electronic tags, in particular to an electronic tag for a license plate. Background technique [0002] In the use of RFID, there are many solutions for the management of cars. For example, most of the current solutions are to paste RFID tags on the front windshield. But usually, everyone likes to put various films on the car. Some car films contain metal components, but the car owner does not know. etc. The device didn't work either. At the same time, with the advancement of glass manufacturing technology, the front windshields of many luxury cars contain heating wires, and the existence of heating wires inhibits the performance of RFID tags, resulting in poor reading performance of RFID tags. Contents of the invention [0003] The embodiment of the present invention provides an electronic license plate tag, which can realize long-distance reading of RFID by using a large area of ​​metal on the electr...

AI Technical Summary

Problems solved by technology

But usually, everyone likes to put various films on the car. Some car films contain metal components, but the car owner does not know. and other devices also do not work

At the same time, with the advancement of glass manufacturing technology, the front windshield of many luxury cars contains heating wires, and the existence of heating wires inhibits the performance of RFID tags, resulting in poor reading performance of RFID tags

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