Effect of Conductive Sheet Placed over PCB on Electromagnetic Noise Shielding
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概要
- 論文の詳細を見る
The effect of a conductive sheet placed over a PCB with a microstrip line on electromagnetic noise shielding is investigated. As a typical conductive sheet, a copper sheet is used, and is not grounded. First, the input impedance of the microstrip line and the magnetic field when varying the distance between the PCR and the conductive sheet are measured, and the distance that does not affect the signal transmission is set at 8mm. Second, the effect of the conductive sheet size on the magnetic field radiation is discussed by measurements and FDTD modeling, and the magnetic near-field distribution around the PCB is visualized by using the FDTD calculation. A conductive sheet whose width is larger than the PCB width should be effective for suppression of the magnetic near-field noise radiation just above a PCB.
- 社団法人電子情報通信学会の論文
- 2003-03-01
著者
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INOUE Hiroshi
Faculty of Engineering, Himeji Institute of Technology
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Inoue H
Faculty Of Engineering And Resource Science Akita University
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TAKITA Hisashi
Faculty of Engineering and Resource Science, Akita University
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Tanaka M
Faculty Of Engineering And Resource Science Akita University
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Tanaka Motoshi
Faculty Of Engineering And Resource Science Akita University
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Takita Hisashi
Faculty Of Engineering And Resource Science Akita University
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Inoue Hiroshi
Faculty Of Eng. Osaka Univ.
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