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《Journal of Wuyi University(Natural Science Edition)》 2012-01
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Via-hole Optimal Simulation of High Speed Circuit PCBs

CAO Xiao-hua1,GAN Jun-ying1,LI De-feng2,ZHANG Jian-ming2(1.School of Information Engineering,Wuyi University,Jiangmen 529020,China; 2.Jiangmen AudioVisio Electronics CO.LTD.,Jiangmen 529000,China)  
Several optimization methods are studied for high speed backboard Stub effect.For single via-holes,high speed route or back drill technology is utilized to reduce the via-hole stub effect on signals.For difference via-holes,a pair of terra via-holes beside difference via-holes and back drill process for difference stub is used to reduce the via-hole stub effect on signals.In this paper,a three-dimensional model is built by way of HFSS to validate the effectiveness.Experimental results demonstrate that via-hole stub effect is eliminated and the quality of signal is improved.
【Fund】: 国家自然科学基金资助项目(No.61072127 No.61070167);; 广东省自然科学基金资助项目(10152902001000002 07010869);; 广东省高等学校高层次人才项目(粤教师函〔2010〕79号)
【CateGory Index】: TN41
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