电磁屏蔽技术研究进展

14,320079JOURNALOFCOMMUNICATIONUNIVERSITYOFCHINA(SCIENCEANDTECHNOLOGY)Vo.l14,No.3Sept,2007张钰(,100024):随着电子技术的发展,电磁干扰越来越严重,电磁屏蔽已经成为解决电磁兼容问题最重要的手段本文首先简述了电磁屏蔽的基本原理,然后着重论述了屏蔽材料的研究进展以及电磁屏蔽设计中的新工艺新结构,最后对屏蔽技术在其他领域内的应用现状及其发展趋势和技术难点进行了简要介绍:电磁屏蔽;屏蔽效能;屏蔽材料;屏蔽结构:TM153+.5:A:1673-4793(2007)03-0065-05TheDevelopmentofElectromagneticShieldingTechnologyZHANGYu(InformationEngineeringSchoo,lCommunicationUniversityofChina,Beijing100024,China)Abstract:Withthedevelopmentoftheelectronicaltechnology,theelectromagneticinterferencehasbecomemoreserious,electromagneticshieldinghasbeenthemostimportantmeasureofsolvingtheproblemsofelectromagneticcompatibility.Inthispaper,firstlythebasicprincipleofelectromagneticshieldingisdescribed,thenthedevelopmentofelectromagneticshieldingmaterialsandthenewtechnologyinelectromagneticshieldingdesignareemphasized.Finallyapplicationsinotherfields,trendanddifficultiesofthetechnologyarepresentedbriefly.Keywords:Electromagneticshielding;Shieldingeffectiveness;Shieldingmaterials;Shieldingstructure1,,,,,2,,,,[1]SE,,30~1000MHz,SE35dB,[2]:SE=A+R+B(dB)(1):2007-04-03:(1984-),(),,.Emai:[e-mail]14,A,R,BA,,R,BA10dB,,R,,A3,,,[3],,,,,,,,:(1),,,,,,65dB[4],;,;,,2070[5],,,,,10kHz~1GHz,,40~60dB[6];,PB151SE40dB,PB152SE60dB,Tempest,[7],100,,,,,,53~77dB,10dB~35dB,,,[8](2),,[9],,;,,ABSPP[10],10~1000MHzSE,[11],6,20~27,SE60~80dB,[12](CoNiFeBSi),,,1~2mm,10~30MHz,60dB[13],,,;,,663:;,;,,/PP,1.18g/,40dB,30~1000MHzSE47dB/ABS[14],,,,,/[15],/,(3),,,,,,[16],,BaymetexDevexMatasolgSeiren[17]6-,,,[18](4),:,,,,100~1000MHz,65~90dB[19],,,,0.1~10,109~1015/,5~98,5~7[20],4,,,,,,,:,,[21],,,,,,,,,,,,,,2/3,10,6714,,F-117B-2YF-23,7~10dB[22]F-117,,,,(RCS),0.02m2[23]B-2,,,,[24],V-RCS,90,RCS10dB[25],,,,8~18GHz,-8dB,1mm,10.8MPa,[26]5,,,,,,,[27],,6,,,::;!:,;∀:,;#:,,:,,;!,,;∀,,;#,,,,,,:[1].[M].,2006.[2].[J].,2006.4.[3].[J].,2005.2.683:[4].[J].,2004.3.[5].[J].,2005,4.[6].[J].,2006.3.[7].[8].[9].[J].,2005.1.[10],,.[J].,1999,12:3-6.[11],,.[J].,2002,33(5):492-494.[12],,.EMI[J].,2000.21.[13].[J].,2001.16(5):20-33.[14]HUANGChi-yuan,MoWen-we,iRoanMing-lih.Theinfluenceofheattreatmentonelectroless-nickelcoatedfibreENCFonthemechanicalpropertiesandEMIshieldingofENCFreinforcedABSpolymericcomposites[J].SurfaceandCoatingsTechnology,2004(184):123-132.[15],.[J].,2003,20(6):54-57.[16][J].,2000.12.[17]LeeCY,etalConductivityandEMIshieldingefficiencyofpolypyrroleandmetalcompoundscoatedonwovenfabrics[J].SyntheticMetals,2001(119):429-430.[18],.[J].,2004.5.[19],.[J].,2004.1.[20],.[J].,2006.12.[21].[J].,2003.3.[22].EMC[J].,2001.3.[23].[J].,2005.11.[24].[J].,2005.1.[25],.[J].,2004.6.[26],.[J].,2006.6.[27],.[A].[C],2004.(:)69