Patent ID: 9704091
Date: 2017-07-11
CPC Classifications: G06K,H01Q,H04B

Claim:
1. A wireless tag unit containing an antenna connected to a semiconductor element including communication and memory functions, a dielectric layer and a metal layer structured to be opposed with the antenna via the dielectric layer, the wireless tag unit comprising: a first conductive element electro-magnetically coupled with a metal surface of the metal layer; and a second conductive element electro-magnetically coupled with the first conductive element, the second conductive element being structured to be branched from the first conductive element, wherein a part of the second conductive element is structured above the antenna so as to keep a predetermined distance from the first conductive element, an open structure being provided with said a part of the second conductive element not to fully shield an area above the antenna, wherein both edges of the first conductive element are extended in a coupling direction with the second conductive element so that the extended portion is set at a predetermined angle within a predetermined range against a longitudinal direction of the antenna, and, wherein the extended portion of the first conductive element includes a sub element capable of being detached from the first conductive element.