Efficient techniques for 3-D impedance extraction using mixed boundary element method

Authors:
Fang Gong;Wenjian Yu;Zeyi Wang;Zhiping Yu;Changhao Yan
Affiliations:
Tsinghua University, Beijing, China;Tsinghua University, Beijing, China;Tsinghua University, Beijing, China;Tsinghua University, Beijing, China;Fudan University, Shanghai, China
Venue:
Proceedings of the 2008 Asia and South Pacific Design Automation Conference
Year:
2008

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Abstract

In this paper, we describe the algorithms implemented in MBEM, a program for wideband impedance extraction of complicated 3-D structures. MBEM is based on a mixed boundary element method (BEM), which reduces the number of unknowns from about 7N in FastImp to 4N, for MQS analysis. Efficient techniques are proposed to handle the extra matrix multiplication, form post-process matrices, and solve the final linear equation system. The inaccuracy of calculation using FastImp at low frequency is also analyzed, which shows the mixed BEM eliminates it completely. Experiments on several typical 3-D structures validate the advantage of MBEM over FastImp, on both accuracy and efficiency.