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Electronic number plate passive anti-metal label antenna based on RFID (Radio Frequency Identification) technology

An anti-metal tag, electronic license plate technology, applied in the direction of antenna, antenna parts, antenna support/installation device, etc., can solve the problem of unable to identify and collect the real identity of the vehicle, achieve large antenna gain, good impedance matching, antenna high gain effect

Pending Publication Date: 2017-09-08
SUZHOU YOUHAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the real identity of the vehicle cannot be identified and collected in the prior art, the present invention proposes an electronic license plate passive anti-metal tag antenna based on RFID technology

Method used

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  • Electronic number plate passive anti-metal label antenna based on RFID (Radio Frequency Identification) technology
  • Electronic number plate passive anti-metal label antenna based on RFID (Radio Frequency Identification) technology
  • Electronic number plate passive anti-metal label antenna based on RFID (Radio Frequency Identification) technology

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The RFID passive anti-metal tag antenna made on the motor vehicle license plate includes an inverted T-shaped slot structure and a dielectric substrate. RFID chips are loaded between the vertical gaps. Setting the inverted T-shaped slot on the edge of the long side of the number plate can maximize the electrical size of the tag antenna and help improve the gain and bandwidth of the tag antenna. Due to the asymmetry of the structure, the main lobe direction of the tag antenna radiation will be biased towards the side where the inverted T-shaped slot is located, so setting the inverted T-shaped slot on the upper edge of the number plate can be more easily recognized by readers that are usually placed at high places. read.

[0026] According to the public safety industry standard GA36-2014 of the People's Republic of China, in order not to affect the printing of the number plate number, the total height of the inverted T-shaped gap should not exceed the distance from the ...

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PUM

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Abstract

The invention discloses a passive anti-metal label antenna which is applied to an electronic number plate and is based on an RFID (Radio Frequency Identification) technology. The passive anti-metal label antenna comprises an inverse T-shaped gap, an RFID chip and a plane dielectric substrate of which shape size is the same to that of a number plate. The inverse T-shaped gap is located on the edge of the number plate and is opened. Two poles of the RFID chip stretch across a centre of a vertical gap. The plane dielectric substrate is pasted on the back of the number plate. The passive anti-metal label antenna is simple in structure and low in production cost. When the passive anti-metal label antenna works on a metal surface, the passive anti-metal label antenna has anti-metal performance and is wide in beam, high in gain and remote in reading distance. The passive anti-metal label antenna is very suitable for an application scene of the electronic number plate.

Description

technical field [0001] The invention belongs to the field of antenna technology and wireless communication, and is a passive anti-metal tag antenna based on RFID technology applied to electronic license plates. Background technique [0002] Electronic license plate, also known as automotive electronic identification, is a collective name for a set of high-tech systems proposed and promoted by the Ministry of Public Security to identify the true identity of vehicles across the country. Combined with the passive radio frequency identification (RFID, or Radio Frequency Identification) technology of the Internet of Things, the electronic license plate has become a new intelligent management method for the development of China's traffic management, and it is a cross-border application after the improvement of the RFID technology of the Internet of Things. [0003] RFID technology is a communication technology that can identify specific targets and read and write related data thro...

Claims

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Application Information

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IPC IPC(8): H01Q1/22H01Q1/36
CPCH01Q1/2225H01Q1/36
Inventor 何赛灵何旺
Owner SUZHOU YOUHAN INFORMATION TECH CO LTD
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