Efficient sensitivity analysis of transmission-line networks using model-reduction techniques

An efficient algorithm, based on congruent transformation and model reducti on, is proposed for evaluation of frequency- and time-domain sensitivity of large linear networks containing lossy coupled transmission lines. The sen sitivity of the voltage and current waveforms can be calculated with respec t to lumped components and parameters of transmission lines, The algorithm is based on projecting the adjoint network equations on a reduced-order sub space that preserves the circuit moments. The proposed algorithm provides a significant decrease in the computational expense for sensitivity analysis .