EMI NOISE SHIELD BOARD INCLUDING ELECTROMAGNETIC BANDGAP STRUCTURE

摘要

PURPOSE: An electromagnetic interference(EMI) noise shielding substrate which includes an electromagnetic band gap structure is provided to use an EBG(Electromagnetic Band Gap), thereby effectively shielding radiation noise emitted to the outside. CONSTITUTION: An electronic product is mounted in the upper surface of a first substrate region. A circuit for signal and power transmission to the electronic product is arranged in the first substrate region. A second substrate region is placed in the lower surface of the first substrate region. An electromagnetic band gap structure is inserted in the second substrate region. The electromagnetic band gap structure includes a band block frequency characteristic in order to shield electromagnetic interference(EMI) noise.