Experimental Verification of a Simple, Intuitive, and Accurate Closed-Form Transfer Function Model for Diverse High-Speed Interconnects

This paper experimentally verifies a simple, intuitive, and accurate closed-form transfer function model for diverse high-speed interconnects for the first time. Recently, an approximate closed-form transfer function model, which is simple, intuitive, and accurate, as well as applicable to diverse high-speed interconnects, was proposed. However, because the model was only verified by SPICE simulation, the experimental verification is required to guarantee the reliability of the model in practical high-speed interconnects. To this end, an example interconnect was designed and fabricated, and its characteristic impedance and propagation constant were extracted. Then, the transfer function calculated from the extracted parameters by using the model was compared with measurement. The result shows that the model can describe the behavior of the fabricated example interconnect and thus is reliable in practical high-speed interconnects.