Partitioning-based second-order model-order reduction method for RC circuits

This paper proposes a new second-order Model Order Reduction (MOR) method suitable for reducing very large sized RC circuits or RC circuit parts of a non-RC circuit. The MOR is carried out on a partitioned circuit, which enables the use of low-order moments and macromodels of few elements. It is shown that the use of the second-order MOR method in conjunction with lower-order methods improves the overall MOR results and reliability in the case where a circuit contains particularly complex structures.