Anti-environment high-scattering-intensity chipless label

• Main Authors: FU GAOYAN, LENG LIZHONG, LENG TAO
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention discloses an environment-resistant chip-free tag with high scattering intensity, and relates to the field of electronic tags. Comprising a plurality of chip-free tag units and a substrate, each chip-free tag unit comprises a dielectric layer and a conductive patch layer arranged on the dielectric layer, the conductive patch layer is provided with a plurality of triangular annular gap resonant cavities, and the resonant frequency is adjusted by changing the lengths of the triangular annular gap resonant cavities. The plurality of chip-free label units are arranged on the substrate in a triangular distribution mode. The tag has the advantages that the designed triangular resonance structure is directly utilized, so that the tag has the characteristic of insensitivity to the polarization direction and has a higher Q value. In a 100MHz frequency band of 3.45-3.55 GHz, three or more label codes can be realized, and the frequency spectrum utilization rate is higher. The utilization rate of the label m