How to make theoretically passive reduced-order models passive in practice

被引：17

作者：

Bai, ZJ ^{[1
]}

Feldmann, P ^{[1
]}

Freund, RW ^{[1
]}

机构：

[1] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA

来源：

IEEE 1998 CUSTOM INTEGRATED CIRCUITS CONFERENCE - PROCEEDINGS | 1998年

关键词：

D O I：

10.1109/CICC.1998.694964

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper demonstrates that, in general, implementations of circuit reduction methods can produce unstable and non-passive models even when such outcomes are theoretically proven to be impossible. The reason for this apparent contradiction is the numeric roundoff inherent in any finite-precision computer implementation. This paper introduces a new variant of the symmetric, multiport, Fade via Lanczos algorithm (SyMPVL) that, even in practice, is guaranteed to produce stable and passive models for all the circuits characterized by pairs of symmetric, positive semidefinite matrices. The algorithm is based by a new band Lanczos process with coupled recurrences. A number of circuit examples are used to illustrate the results.

引用

页码：207 / 210

页数：4