| 摘要 |
Method and apparatus for using frequency domain loss functions, such as Impedance, Admittance, parameters in a time-based simulator (figure 3). The parameters are either calculated using an electromagnetic field solver or measured, at selected frequencies. Preferably, the selected frequencies are related to one another by a logarithmic scale, providing for the determination of a finite series transfer function of the system and which is accurate up to the order of 100 GHz frequencies. The transfer function preferably takes the form of a fitted series, with the residues of the series evaluated using DREF techniques (figure 3). The resulting residues are used to realize circuit loss networks which are incorporated into the modeled circuit and are used in time or frequency domain simulators to accurately simulate losses associated with the transmission of test signals in the modeled lossy circuit.
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