* Question
| How are the anti-metal labels mostly achieved? |
* Answer
| At present, most of the anti-metal labels are realized by the following four methods.The effect of the metal boundary is reduced by adjusting the distance between the tag antenna and the metal surface;
(2) the absorbing material is used; (3) the substrate of the electromagnetic band gap EBG (Electromagnetic Band Gap) structure is used as the dielectric plate of the antenna; (4)The antenna structure is designed as a structure of a microstrip antenna. |
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