Title :
New methods for speeding up computation of Newton updates in harmonic balance
Author :
Gourary, M. ; Ulyanov, S. ; Zharov, M. ; Rusakov, S. ; Gullapalli, K. ; Mulvaney, B.
Author_Institution :
Acad. of Sci., Moscow, Russia
Abstract :
A new adaptive approach to solving large-dimension harmonic balance (HB) problems in RF circuit simulation is presented. The method is based on adjusting the order of the equation system according to the degree of nonlinearity of each node in the circuit. A block-diagonal preconditioner is used to construct an algorithm for order reduction during the iterative HB process.
Keywords :
Newton method; circuit simulation; harmonic analysis; matrix algebra; reduced order systems; Newton update computation; RF circuit simulation; adaptive approach; block-diagonal preconditioner; circuit node nonlinearity degree; computation speed; equation system order; iterative process; large-dimension harmonic balance problems; order reduction algorithm; Circuit simulation; Costs; Iterative algorithms; Jacobian matrices; Linear systems; Microwave circuits; Nonlinear equations; Radio frequency; Steady-state; Vectors;
Conference_Titel :
Computer-Aided Design, 1999. Digest of Technical Papers. 1999 IEEE/ACM International Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
0-7803-5832-5
DOI :
10.1109/ICCAD.1999.810622
