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Geometrical and shape parameters variation in the HF interconnects analysis

In this paper we investigate the parametric variability analysis for interconnect structures working in the high frequencies. Our final goal is to compute p.u.l. characteristics of interconnect elements for the different geometrical, material and shape parameter values. We considered two cases: a T-shape single transmission line parameterized by the position of the square part and a L-shape interconnect parameterized by the width and the bend shape. Simulations have been made using parametric models based on the first order Taylor series expansion, analytical expressions and also polynomial/rational approximations. Our results were verified using commercial and academic software.