Parametric Modeling and Estimation of Pulse Propagation on Microwave IntegratedCircuit Interconnections

摘要

The modeling of picosecond pulse propagation on microwave integrated circuitinterconnections is considered. Autoregressive moving-average (ARMA) and autoregressive (AR) parametric models are derived for lossy dispersive microstrip transmission lines and cascaded microstrip step discontinuities. We formulated mathematical expressions to relate the model parameters to the physical microstrip properties. New lumped-distributed equivalent circuit interconnections are modeled using frequency-dependent lumped parameters and lossy distributed transmission-line sections. We verified the equivalent circuit models through computer simulations and experimental measurements. Modern parameters estimation techniques are applied to system identification modeling. We develop several algorithms to estimate the model parameters from input and/or output measurements. The performance of the algorithms are evaluated using computer simulations and experimental results.