Low and high frequency high sensitivity RFID passive label and batch production method thereof

Abstract

The invention provides a low and high frequency high sensitivity RFID passive label and a batch production method thereof. The passive label comprises tapped coil composing a label double sensing circuit, a tuning capacitor C12, a RFID chip, wherein, with a given card area and external coupling environment, common coil is substituted by the tapped coil, a label circuit is a double sensing circuit; connection topology relations of the tapped coil, the RFID chip and the tuning capacitor C12 are that: the RFID chip connects an initiating terminal of the coil and intermediate tap, and the tuning capacitor C12 connects the initiating terminal of the coil and a termination terminal of the coil. According to the invention, sensitivity and read-write distance of the label are raised.

Description

technical field [0001] The invention relates to the field of RFID, in particular to a low-frequency high-sensitivity RFID passive tag and a mass production method thereof. Background technique [0002] Radio Frequency Identification (RFID) is a technology that read-write equipment uses radio frequency signals to automatically identify the response tag attached to the target object and obtain relevant information. It has broad application prospects. RFID technology can be widely used in asset management, production lines, commercial sales, warehousing and logistics (can be widely used in land transportation, water transportation, aviation), intelligent transportation, commodity anti-counterfeiting, tracking and positioning, etc. At present, RFID technology has become the core of the "Internet of Things" One of the technologies with huge economic and social significance. [0003] The basic RFID system consists of an electronic tag (Tag) and a reader (Reader). In practical app...

AI Technical Summary

Problems solved by technology

The energy of passive RFID tags comes from the radio frequency energy emitted by the reader, without the need for a built-in power supply. It has the advantages of small size, light weight, low cost, and almost no limit on service life, but requires a higher power reader; active RFID The energy of the tag comes from its built-in power supply, which has the advantages of long-distance identification and little dependence on the transmission power of the reader, but the cost is high and the service life is limited.

Images