Characterization of Radiated EMI Generated by Digital Wireless Speaker
In the paper, a fast analysis method by using near-field probes is proposed to diagnose radiated EMI mechanism for digital wireless speaker based on the inner relationship between radiated electromagnetic (EM) field and wave impedance.The results show CM noise dominates radiated EMI noise when frequency is below 300MHz.Furthermore, a new method by using radio frequency (RF) circuit probes is used to estimate radiated EMI noise.By analyzing measurement in 3-m chamber with Ferrite Core or not, the research shows that the proposed method is convenient and efficient.
Digital wireless speaker Radiated EMI Noise estimation
Luo Yongchao Zhao Yang Yan Wei Li Shijin Yue Dong
School of Electrical & Automation Engineering,Nanjing Normal University,Nanjing 210042 School of Electrical & Automation Engineering,Nanjing Normal University,Nanjing 210042;State Key Lab
国际会议
Asia-Pacific Conference on Environmental Electromagnetics CEEM2009(第五届亚太环境电磁学学术会议)
西安
英文
373-376
2009-09-16（万方平台首次上网日期，不代表论文的发表时间）