电源与地平面间谐振电压噪声和阻抗特性仿真  

Simulation of Resonance Voltage Noise and Impedance Characteristics Between Power Supply and Ground Plane

作　　者：高成[1] 寇震梦 黄姣英[1] Gao Cheng;Kou Zhenmeng;Huang Jiaoying

机构地区：[1]北京航空航天大学可靠性与系统工程学院

出　　处：《安全与电磁兼容》2020年第6期65-69,共5页Safety & EMC

基　　金：技术基础科研项目(JSZL2017601B011)。

摘　　要：多层PCB板中的电源与地平面间的谐振效应会引发电压噪声及电磁辐射问题。利用Cadence Sigrity软件,从电源和地平面间谐振电压噪声和阻抗特性两个维度对谐振效应进行了评估。通过控制变量,对比不同PCB设计下的仿真结果,发现增加去耦电容、减小平面间距和合理的平面分割方式可以降低谐振效应。The resonant effect between power supply and ground plane in multilayer PCB will cause voltage noise and electromagnetic radiation.Cadence Sigrity software is used to evaluate the resonance effect from the two dimensions of resonant voltage noise and impedance characteristics between power supply and ground plane.By comparing the simulation results of different PCB designs with the control variables,it is found that the increase of decoupling capacitance,the decrease of plane spacing and the reasonable plane segmentation can reduce the resonance effect.

关 键 词：电源和地平面 谐振电压噪声仿真 阻抗仿真 Cadence Sigrity软件 PCB设计 

分 类 号：TM743[电气工程—电力系统及自动化]