An Improved Adaptive Finite Element Method for the Simulation of Electromagnetic Field in PPFDs

作     者：Zhanghong Tang Qun Wang and Hongxia Guo College of Materials Science and Engineering Beijing University of Technology Beijing 100124 China Meiwu Shi Maohui Li The Quartermaster Equipment Research Institute of the General Logistics Department of the PLA Beijing 100082 China 

会议名称：《The Fifth Asia-Pacific Conference on Environmental Electromagnetics》

会议日期：2009年

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the Doctor Research Fund of School(No.X0009011200905) National High Technology Research and Development Program of China (No.2007AA06Z320) 

关 键 词：Parallel Plate Field Domain Adaptive Finite Element Method Superconvergent Patch Recovery Refinement Degree PCBs and IC packages 

摘      要：正Basing on the posteriori error estimation and Superconvergent Patch Recovery（SPR） technology,Elena Zhelezina proposed a fast adaptive mesh refinement strategy which can generate the refined mesh for the required accuracy with only one step of ***,the strategy generates too many elements in PPFDs which is unpractical to simulate the PCBs and IC packages with complicated multiple layers,where the electromagnetic field in PPFDs is calculated,since too many elements lead to the FEM sparse matrices can’t be solved on current machines because of inefficient *** this paper,a new formula to estimate the global error is introduced,and then, a new strategy to calculate every element’s refinement degree is *** show that the improved method generates less than half of elements comparing to Elena Zhelezina’s method, but still requires only one step *** mesh refinement strategy was successfully applied to calculate the electromagnetic field in PPFDs for simulating the PCBs and IC packages with high accuracy.