Application of asymptotic waveform evaluation to eigenmode expansion method for analysis of simultaneous switching noise in printed circuit boards (PCBs)

作者：Liu, Ping^*; Li, Zheng Fan; Han, Guo Bing

来源：IEEE Transactions on Electromagnetic Compatibility, 2006, 48(3): 485-492.

DOI：10.1109/TEMC.2006.879334

• asymptotic waveform evaluation
• complex frequency hopping
• eigenmode expansion method
• power/ground plane pair
• simultaneous switching noise

In this paper, the asymptotic waveform evaluation (AWE) technique is first applied to the conventional eigenmode expansion method for characterizing a power/ground (P/G) plane pair and analyzing the simultaneous switching noise on such plane pairs for printed circuit boards or multichip modules. The application of AWE avoids a large number of iterations in computing the impedance frequency response of a P/G plane pair structure and greatly reduces the computation time. Meanwhile, to obtain an accurate solution in an entire frequency range, we employ the complex frequency hopping technique which can help select multiple expansion points. In addition, the proposed approach can also be used to characterize the P/G plane pair structures with irregular shapes. Three examples demonstrate its high efficiency and good accuracy.

• 出版日期2006-8
• 单位上海交通大学