EBG STRUCTURE, ANTENNA DEVICE, RFID TAG, NOISE FILTER, NOISE ABSORPTIVE SHEET AND WIRING BOARD WITH NOISE ABSORPTION FUNCTION

摘要

A magnetic part is at least partially incorporated in an EBG (electromagnetic bandgap) structure. Preferably, the magnetic part is disposed in proximity to, if possible in contact with, at least portion of a conductor as a constituent of the EBG structure, for example, ground conductor, capacitance constructing conductor and/or conductor constructing via or other inductance. As the magnetic part, there can be mentioned, for example, a ferrite plated film, a composite magnetic layer composed a magnetic powder and a resin binder, etc.