A Refinement Procedure for S-Parameter DC Extrapolation based on Sampling Theorem and Causality
Hao Jie Shi · 2007
The relations between the sampled sequences of the real and imaginary parts of a causal function are found based on sampling theorem and causality. An iterative procedure is devised to update any frequency-domain causal sequence, which can be applied to refine any DC extrapolation of S-parameters.