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首页> 外文期刊>IEEE Transactions on Automatic Control >Passive multipoint moment matching model order reduction algorithm on multiport distributed interconnect networks
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Passive multipoint moment matching model order reduction algorithm on multiport distributed interconnect networks

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摘要

In this paper, we introduce a general method of interconnect simulation based on distributed circuits. The algorithm is very efficient and consists of two main steps. In the first step, each distributed line is modeled by a finite order systemwith passivity preservation and multipoint moment matching of its input admittance/impedance matrix. In the second step, an Arnoldi-based congruence transform is applied to the network to form its reduced order model. The main feature of the algorithm isin its first step, where a passive multipoint moment matching model of a distributed line can be generated without any discretization of the line. We provide an integrated-congruence transform which can be directly applied to the partial differentialequations of a distributed line and generate a passive finite order system as its model. We also provide an algorithm based on the T{sup}2 Hilbert space theory so that exact moment matching at multiple points can be obtained. We demonstrate the accuracyof our method with examples and show the advantage of ours over conventional ones based on lumped circuit models.

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