This presentation analyzes second-order design features using precision measurements of test vehicles and digital twins. We propose a metric-driven methodology based on AI/ML to determine relevant parameters for simulating anisotropic [...]
This tutorial aims to demystify crosstalk by explaining its mechanisms, quantification, and mitigation strategies.
This work presents a novel approach of PCB vias design and optimization for 112 and 224 Gb applications.
Crosstalk is unwanted noise from structures coupled to a signal link that degrade the useful signal and may reduce the data transmission rate and even cause complete link failure. All possible signal degradation effects, including the crosstalk, can be expressed with the balance of power.
In this paper, we analyze the computational procedure specified for Channel Operation Margin (COM) and compare it to traditional statistical eye/BER analysis.
As serial link speeds increase, systems become more “Stressed”. Loss, low probability deterministic jitter, crosstalk aggression from densely packed signal nets, via and connector impedance and associated resonances, and package [...]
A novel method for extraction of dispersive dielectric parameters to 50 GHz is proposed. The method doesn’t require advanced de-embedding, and is based on correlation of measured and simulated generalized modal S-parameters of a line segment. First, VNA measurements for two line segments are made and used to compute generalized S-parameters of a difference segment. Second, 3D full-wave model of the difference segment with conductor model with roughness is used to identify the dielectric properties. We finalize the paper with the derivation of dielectric models for low-cost FR4-type and for expensive low-loss high-frequency materials. The advanced models can be used for practical electromagnetic analysis of interconnects for the 6-100 Gb/s realm.
A simple and practical methodology to extract frequency-dependent dielectric parameters on the base of correlation of measurements and simulations is proposed.
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