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VL-427 Designing for Lower Loss

VL-427 Designing for Lower Loss

While transmission line loss will always decrease with shorter lengths, rarely do we have the luxury to choose this option. Instead, we must optimize other design features to control loss.  The two most important terms affecting the conductor loss are line width and differential impedance. We show that with an accurate field solver that takes into account the current distribution in all conductors, we can optimize the stack-up for lowest possible conductor loss. Dielectric loss is dominated by the dielectric properties of the laminate and does not depend on the differential impedance. Material choice and environmental stability are very important design terms. In this lecture, we show you how to explore design space to optimize solutions and evaluate the performance advantage of design features.

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