Patent ID: 8544754
Filing Date: 2013-10-01
Classification: G06K,H01F,H01L,H01Q

Abstract:
1. A wireless IC device comprising: a wireless IC chip; a feed circuit board connected to the wireless IC chip and including a feed circuit including an inductance element that includes a first portion and a second portion; and a radiation plate electromagnetically coupled to the inductance element in the feed circuit; wherein the radiation plate and the inductance element are not directly physically or electrically connected to one another; a high-permeability magnetic body made of a high-permeability magnetic material is provided in at least a portion of the feed circuit board and the first portion of the inductance element is provided in the high-permeability magnetic body; the second portion of the inductance element is provided outside of the high-permeability magnetic body and is electromagnetically coupled to the radiation plate; and the radiation plate is arranged to radiate a transmission signal supplied from the feed circuit board and/or receive a reception signal and supply the reception signal to the feed circuit board.