DocumentCode :
2350184
Title :
SPRIM: structure-preserving reduced-order interconnect macromodeling
Author :
Freund, Roland W.
Author_Institution :
Dept. of Math., California Univ., Davis, CA, USA
fYear :
2004
fDate :
7-11 Nov. 2004
Firstpage :
80
Lastpage :
87
Abstract :
In recent years, order-reduction techniques based on Krylov subspaces have become the methods of choice for generating macromodels of large multi-port RLC circuits. A widely-used method of this type is PRIMA. Its main features are provably passive reduced-order models and a moment-matching property. On the other hand, PRIMA does not preserve other structures, such as reciprocity or the block structure of the circuit matrices, inherent to RLC circuits, which makes it harder to synthesize the PRIMA models as actual circuits. Moreover, the PRIMA models match only half as many moments as optimal, but non-passive, moment-matching techniques such as SyMPVL. In this paper, we propose the reduction technique SPRIM that overcomes these disadvantages of PRIMA. In particular, SPRIM generates provably passive and reciprocal macromodels of multi-port RLC circuits, and the SPRIM models match twice as many moments as the corresponding PRIMA models obtained with identical computational work. Numerical results are reported that illustrate the higher accuracy of SPRIM vs. PRIMA.
Keywords :
circuit simulation; integrated circuit interconnections; integrated circuit modelling; numerical analysis; reduced order systems; Krylov subspaces; PRIMA models; SPRIM technique; SyMPVL; block structure; circuit matrices; moment-matching property; multi-port RLC circuits; nonpassive moment-matching techniques; order-reduction techniques; passive macromodel; passive reduced-order models; reciprocal macromodels; structure-preserving reduced-order interconnect macromodeling; Circuit simulation; Circuit synthesis; Electronic circuits; Electronics packaging; Integrated circuit interconnections; Integrated circuit layout; Integrated circuit modeling; Mathematics; RLC circuits; Reduced order systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Aided Design, 2004. ICCAD-2004. IEEE/ACM International Conference on
ISSN :
1092-3152
Print_ISBN :
0-7803-8702-3
Type :
conf
DOI :
10.1109/ICCAD.2004.1382547
Filename :
1382547
Link To Document :
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