Patent ID: 9697311
Date: 2017-07-04
CPC Classifications: G06F

Claim:
1. A computer program product for generating a complete delay twinaxial Simulation Program with Integrated Circuit Emphasis (SPICE) model, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer to cause the computer to perform a method comprising: generating a reduced delay twinaxial SPICE model, the reduced delay twinaxial SPICE model comprising: directly measuring near end S-parameter components and far end S-parameter components of a twinaxial cable, using a vector network analyzer; reducing an original time delay of the far-end S-parameter components by multiplying each of the far-end S-parameter components by a complex exponential based on an equivalent delay length, a signal frequency, and an effective dielectric constant, wherein the complex exponential is e simulating a signal transmitted across a twinaxial cable by running a 4-port SPICE model using the near end S parameter components and the multiplied far end S parameter components; recording a magnitude and a phase of the transmitted signal with respect to frequency as outputs of the reduced delay twinaxial SPICE model; recovering an original time delay of the far-end S-parameter components using at least two ideal transmission line models; blocking incident waves of the transmitted signal using at least two directional junction circuit models; and comparing a measured magnitude and phase with respect to frequency of the twinaxial cable, to the recorded magnitude and phase with respect to frequency of the reduced delay twinaxial SPICE model.