Chipless radio frequency identification (RFID) electronic tag based on pole identification

A technology of electronic tags and poles, which is applied to recording carriers used by machines, instruments, computer components, etc., can solve the problems of high requirements for the combination of chips and transceiver antennas, difficulties in packaging and manufacturing, and poor environmental adaptability, so as to ensure insensitivity , Low single chip price, low energy consumption

Inactive Publication Date: 2013-07-24
何毅 +2
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Problems solved by technology

[0005] In order to overcome the shortcomings of traditional core electronic tags, such as high power consumption requirements, high single-chip price, difficult packaging and manufacturing, high r...

Method used

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  • Chipless radio frequency identification (RFID) electronic tag based on pole identification
  • Chipless radio frequency identification (RFID) electronic tag based on pole identification
  • Chipless radio frequency identification (RFID) electronic tag based on pole identification

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Embodiment Construction

[0017] exist image 3 , the excitation wave source (6) applies ultra-wideband (UWB) impulse pulse electromagnetic waves, the incident direction is perpendicular to the paper surface within ±60 range, the polarization direction is parallel to the short axis of the label, and the working frequency can be selected according to actual needs. according to Figure 5 The shown pole extraction procedure obtains pole distributions corresponding to different label structures. In the electromagnetic field simulation software FEKO, the method of moments (MOM: Method of Moments) is used to obtain the complex frequency domain data of the tag relative to the UWB incident wave scattering electric field, and the inverse fast Fourier transform (IFFT) is completed on the data to obtain the time domain impulse. Response, and then use the matrix beam method (MPM: Matrix Pencil Method) to extract the corresponding poles and residues, and then achieve the purpose of label recognition.

[0018] F...

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Abstract

The invention discloses a chipless radio frequency identification (RFID) electronic tag based on pole identification. The chipless RFID electronic tag based on the pole identification is composed of a plurality of folded dipole basic resonance units with different physical sizes, and each basic resonance unit is capable of generating unique resonance characteristics in a specific frequency range. Tag structures with different data codes can be acquired through combination of all the resonance units with different lengths, widths and folded position-center distances. When detecting is carried out, ultra wide band (UWB) impulse pulsed electromagnetic wave is used for a drive signal, and a singularity expansion method (SEM) based on stag scattered signals is adopted to acquire pole parameters which correspond with stag structure parameters. Identity data with the stags are distributed on complex frequency (poles) related to natural resonance, and then identification of the chipless RFID electronic tag can be achieved through a specific coding and decoding method.

Description

technical field [0001] The invention relates to the design of a coreless RFID electronic tag based on pole identification, which is mainly used in the current common radio frequency identification system to replace the traditional RFID electronic tag with a chip. Coreless RFID tags are RFID technologies that do not require silicon chips to store data. The tag data is embedded in the natural resonance of the structure. It does not require transmission lines, lumped components, and transducer elements to modulate the scattered signals. It has a simple structure, a single chip price, and low energy. Less wear and tear. Background technique [0002] Radio Frequency Identification (RFID: Radio Frequency Identification ) is an automatic identification method that uses tags and radio waves to store and retrieve remote data. With the increasing degree of socialization and the continuous advancement of scientific methods, people have higher and higher requirements for work efficienc...

Claims

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Application Information

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IPC IPC(8): G06K19/067
Inventor 徐利邹传云何毅
Owner 何毅
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