Passive ultrahigh-frequency electronic-label structure used for automobile

Abstract

The invention discloses a passive ultrahigh-frequency electronic-label structure used for an automobile. The structure includes a base material, a tag antenna structure and an ultrahigh-frequency radio frequency identification chip. The tag antenna structure is printed on the base material. The ultrahigh-frequency radio frequency identification chip is welded on a feed port of the tag antenna structure through a welding technology. The tag antenna structure includes a first substructure segment and a second substructure segment. The first substructure segment has a structure of Chinese character 'Shan' which is rotated anticlockwise for 90 degrees, that is, the middle of the first substructure segment is a bump and the two ends of the bump are connected with transition segments respectively. The transition segments are connected with extension segments vertical to the transition segments. The second substructure segment has a structure of Chinese character 'Shan' which is rotated clockwise for 90 degrees. The second substructure segment is symmetrical with the first substructure segment. The passive ultrahigh-frequency electronic-label structure used for the automobile has the characteristics of broadband and long-distance identification and capable of satisfying vehicle-operating long-distance automatic identification.

Description

technical field [0001] The invention relates to the field of electronic tags, in particular to a passive ultra-high frequency electronic tag structure for automobiles. Background technique [0002] At present, passive UHF technology is widely used in logistics and warehousing management, intelligent parking lot management, product anti-counterfeiting detection, vehicle management and other fields, especially in vehicle management applications, due to the complexity of the vehicle operating environment, RFID tags are usually required It is mounted on the front windshield of the car, so the label design performance is very high, which requires the design of a special RFID label for the complex operating environment of the vehicle, so as to meet the reliable identification and management of the vehicle by the RFID system. [0003] Although the electronic tags used in the existing passive UHF radio frequency identification vehicle management system can play a certain role in...

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Problems solved by technology

[0005] The present invention solves the problem that although the electronic tags used in the existing passive UHF radio frequency identification vehicle management system can play a certain management role, they cannot fully meet the needs of the RFID system because of their narrow bandwidth, small gain, and short recognition distance. The problem of long-distance reliable identification of RFID tags in the complex environment of vehicle operation

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