| Presentation | 1994/6/3 A method to reduce electromagnetic noise emmitted by a slit on the ground plane of a multilayer printed circuit boad. Hiroshi Kubo, Osami Wada, Ryuji Koga, Hiroya Sano, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A slit on the ground plane of a multilayer printed circuit board(PCB)increases undesirable electromagnetic noise excited by the retum current going around the slit.In this report a practical method is proposed to reduce the noise emission from high-speed digital circuits.Current paths are prepared on the surface of the PCB near a signal line to bypass the slit and to decrease the current loop area.The authors evaluated the noise emission spectra from a signal line on a PCB with a slit and examined them in different conditions.For a signal line of 100mm in length driven and loaded by CMOS-ICs,the noise spectra were reduced 5dB in maximum by bypassing.In conclusion,the method is proved to be effective for reducing the emitted noise. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multilayer printed circuit board / ground plane / slit / return current / bypass / electromagnetic emission |
| Paper # | EMCJ94-9 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 1994/6/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A method to reduce electromagnetic noise emmitted by a slit on the ground plane of a multilayer printed circuit boad. |
| Sub Title (in English) | |
| Keyword(1) | multilayer printed circuit board |
| Keyword(2) | ground plane |
| Keyword(3) | slit |
| Keyword(4) | return current |
| Keyword(5) | bypass |
| Keyword(6) | electromagnetic emission |
| 1st Author's Name | Hiroshi Kubo |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering,Faculty of Engineering,Okayama University() |
| 2nd Author's Name | Osami Wada |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering,Faculty of Engineering,Okayama University |
| 3rd Author's Name | Ryuji Koga |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering,Faculty of Engineering,Okayama University |
| 4th Author's Name | Hiroya Sano |
| 4th Author's Affiliation | Department of Electronic and Electrical Engineering,Faculty of Engineering,Fukuyama University |
| Date | 1994/6/3 |
| Paper # | EMCJ94-9 |
| Volume (vol) | vol.94 |
| Number (no) | 82 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |