A two-layer board intellectual property to reduce electromagnetic radiation

A two-layer board intellectual property to reduce electromagnetic radiation

A non-ideal return path in the printed circuit board (PCB) with a split reference plane will increase electromagnetic interference (EMI) that is encountered in the digital LCD-TV system using a 2-layer PCB. An innovative layout skill using the surface mounted jumpers or zero ohm resistors to connect...

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Hauptverfasser: Nansen Chen, Hongchin Lin
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Sprache:eng
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Electromagnetic interference
Electromagnetic radiation
Frequency measurement
Pins
Resistors
SDRAM
Solids
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Hongchin Lin
description A non-ideal return path in the printed circuit board (PCB) with a split reference plane will increase electromagnetic interference (EMI) that is encountered in the digital LCD-TV system using a 2-layer PCB. An innovative layout skill using the surface mounted jumpers or zero ohm resistors to connect the power nets in the PCB and DDR SDRAM can avoid the split reference plane in the bottom layer. From the S-parameters simulation, the proposed PCB design induces less signal insertion loss, which is expected to have less radiation. The radiated emission measurement was also performed to verify the 2-layer PCB with the solid reference plane achieving less electromagnetic radiation from 0.36 dB to 8.65 dB (μV/m) in the range of DDR operating and harmonic frequencies.
doi_str_mv 10.1109/ISEMC.2010.5711285
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identifier ISSN: 2158-110X
ispartof 2010 IEEE International Symposium on Electromagnetic Compatibility, 2010, p.279-283
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language eng
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Electromagnetic interference
Electromagnetic radiation
Frequency measurement
Pins
Resistors
SDRAM
Solids
title A two-layer board intellectual property to reduce electromagnetic radiation
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