Band-Stop Filter Effect of Power/Ground Plane on Through-Hole Signal Via in Multilayer PCB(Electronic Components)
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概要
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The effect of the power/ground plane on the through-hole signal via is analyzed in a viewpoint of a band-stop filter. When the through-hole signal via passes through the power/ground plane, the return current path discontinuity of the through-hole signal via occurs due to the high impedance of the power/ground plane. Since the high impedance is produced by the power/ground plane resonance, it acts as a band-stop filter, which is connected to the signal trace in series. Therefore, the power/ground plane filters off its resonance frequency component by absorbing and reflecting from the signal on the through-hole signal via, and consequently the signal distortion, the power/ground plane noise voltage, and the consequent radiated emission occur. With S-parameter and TDR-TDT measurements, the band-stop effect of the power/ground plane on the through-hole signal via is confirmed. And then, this analysis is applied to the clock transmission through the through-hole signal via to obtain the clearer confirmation. The measurements of the distorted clock waveforms, the induced power/ground plane noise voltages, and the radiated emissions depending on the power/ground plane impedance around the through-hole signal via are shown.
- 2006-04-01
著者
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AOYAGI Masahiro
National Institute of Advanced Industrial Science and Technology
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Kim Joungho
Kaist (korea Advanced Inst. Of Sci. And Technol.) Daejeon Kor
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Kim Joungho
Kaist
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KIKUCHI Katsuya
National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Center 2
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Kikuchi Katsuya
High Density Interconnection Group Nanoelectronics Research Institute(neri) National Institute Of Ad
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Kikuchi Katsuya
National Institute Of Advanced Industrial Science And Technology (aist) Aist Tsukuba Center 2
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PAK Jun
School of EECS, KAIST
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Pak Jun
Kaist Daejeon Kor
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PAK Jun
National Institute of Advanced Industrial Science and Technology
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Kikuchi Katsuya
National Institute of Advanced Industrial Science and Technology (AIST)
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