角度编码柔性无芯片标签的散射特性及识别

Scattering Characteristics and Identification of an Angle-Based Flexible Chipless Tag

本文研究了一种角度编码的柔性无芯片标签的散射特性.该标签的V形散射体包含两条金属臂,利用两臂之间的空间角度进行编码.通过测量标签在谐振频率上的正交散射场分量,即可识别标签.即使标签在自身所在表面上发生旋转,也能够被准确识别;分析了标签粘贴在曲面物体上,物体弯曲半径和物体相对介电常数对识别结果的影响,以及准确识别标签的情况下,收发装置之间的最大夹角.

The scattering characteristics of an angle-based flexible chipless tag was studied in this paper.Its V-shape scatterer contains two metal arms.It encodes data using the space angle between two arms and is identified by measuring he orthogonal component of scattering field on resonant frequency.Even if it is rotated on its surface,the tag can be identified.The tag is pasted on an object with a curved surface.Then the influences of bending radius and relative dielectric constant of the object on the simulated results are studied.After that,the maximum angle between sending and receiving devices for identifying tags accurately is also studied in this paper.