With the increasing operating frequencies and functionality in modern designs, the resulting size of circuit equations of high-frequency interconnect and microwave subnetworks are becoming large. Passive model-reduction based algorithms were recently suggested to handle the solution complexity of RLC circuits or stand-alone state-space systems. However, with the diverse technologies in current designs and complex geometries, it is becoming prevalent to describe some of the embedded linear modules in terms of state-space equations. In this paper, we will present a new methodology to generate compact passive macromodels for linear circuits with multiple embedded state-space systems as well as RLC elements.

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Keywords Compact Macromodels, Passive Model Order Reduction, State-Space Systems, Transient Analysis, Transmission Lines. Truncated Balance Realization
Conference 2004 IEEE MITT-S International Microwave Symposium Digest
Saraswat, D., Achar, R, & Nakhla, M.S. (2004). A methodology for generating compact passive macromodels for high-frequency interconnect and microwave subnetworks. In IEEE MTT-S International Microwave Symposium Digest (pp. 707–710).