MULTY LAYER COMMON MODE FILTER

摘要

PURPOSE: A multilayer common mode filter is provided to maintain a high coupling coefficient by shifting a first inner conductor or a second inner connector. CONSTITUTION: A sheet(10,70) is made of magnetic ferrite. A fourth inner electrode(22) with a coil shape is formed on the upper side of the sheet made of dielectric of low permittivity. A sheet(44) made of insulating materials is stacked on the upper side of a sheet(42). A via hole and a core are formed on the sheet made of insulating materials. A sheet(46) made of ferrite of high permeability is stacked on the sheet made of the insulating materials.