Neodymium iron boron suspended microstrip RFID tag antenna

An RFID tag, neodymium iron boron technology, which is applied to the antenna support/installation device, the record carrier used by the machine, the structure of the radiating element, etc., can solve the RFID tag antenna impedance value fluctuates violently, and cannot be matched in a large range.

Inactive Publication Date: 2015-04-15
谢超
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical defects in the prior art that the impedance value of the RFID tag antenna fluctuates violently and cannot match various packages in a wide range, the present invention provides a NdFeB suspended microstrip RFID tag antenna

Method used

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  • Neodymium iron boron suspended microstrip RFID tag antenna

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Embodiment Construction

[0012] A specific embodiment of the present invention is given below.

[0013] The NdFeB suspended microstrip RFID tag antenna includes the antenna substrate on the device body, and there is an air layer close to the antenna substrate and a metal layer close to the device body between the antenna substrate and the device body. The metal layer material is NdFeB.

[0014] NdFeB magnetic material, as the latest result of the development of rare earth permanent magnet materials, is known as the "Magnetic King" because of its excellent magnetic properties. NdFeB magnetic materials are alloys of neodymium, iron oxide, etc. Also known as magnetic steel. NdFeB has extremely high magnetic energy product and coercive force, and the advantages of high energy density make NdFeB permanent magnet materials widely used in modern industry and electronic technology, thus making RFID antennas and other equipment miniaturized and lightweight , Thinning becomes possible. The advantages of Nd...

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Abstract

The invention relates to a neodymium iron boron suspended microstrip RFID tag antenna. The neodymium iron boron suspended microstrip RFID tag antenna includes an antenna substrate arranged on equipment body; and an air layer attached to the antenna substrate and a metal layer attached to the equipment body are arranged between the antenna substrate and the equipment body, wherein the metal layer is made of neodymium iron boron. According to the neodymium iron boron suspended microstrip RFID tag antenna of the invention, the air layer and the metal layer are additionally adopted, so that influences of items in a packaging box, on the RFID tag antenna, can be isolated; and the neodymium iron boron suspended microstrip RFID tag antenna is manufactured and tested, and the feasibility of the RFID tag structure is verified, and therefore, a universal RFID packaging box can be manufactured possibly.

Description

technical field [0001] The invention belongs to the field of electronic communication, and relates to a neodymium-iron-boron suspension microstrip RFID tag antenna. Background technique [0002] In recent years, the research and application of radio frequency identification (RFID) technology, especially the product packaging box identification and automatic tracking management technology in the logistics supply chain, have developed rapidly. A typical RFID system consists of an RFID reader and an RFID tag. The RFID tag is powered by the electromagnetic signal emitted by the reader, and communicates with the reader by reflecting the modulated electromagnetic signal. RFID tags are composed of RFID tag chips and tag antennas. The impedance matching degree between the RFID tag antenna and the tag chip determines the power supply efficiency and the reading and writing distance of the RFID tag. It is the main factor affecting the performance index of RFID tags. The items in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/22H01Q1/38G06K19/07
Inventor 谢超
Owner 谢超
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