Transmission Line Attenuation-Impedance Realistic Corner Modeling by Scaled-Down Tolerance Boundary Scan

This paper discusses a method to generate transmission line attenuation-impedance realistic corner models by scaled-down tolerance boundary scan. Based on nominal and tolerance specifications of the transmission line physical and geometric parameters, the scaled-down tolerance boundary scan is used to find the realistic corners in the attenuation-impedance space. The tolerance scaling factor is determined or verified by comparing the derived corners with the attenuation-impedance distribution by Monte Carlo statistical electromagnetic simulations. This scaling factor can be used for similar structures in future applications. The system eye diagrams based on different bounding models are shown.