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A two-step perturbation technique for nonuniform single and differential lines
Abstract
A novel two-step perturbation technique to analyze nonuniform single and differential transmission lines in the frequency domain is presented. Here, nonuniformities are considered as perturbations with respect to a nominal uniform line, allowing an interconnect designer to easily see what the effect of (unwanted) perturbations might be. Based on the Telegrapher's equations, the proposed approach yields second-order ordinary distributed differential equations with source terms. Solving these equations in conjunction with the pertinent boundary conditions leads to the sought-for currents and voltages along the lines. The accuracy and efficiency of the perturbation technique is demonstrated for a linearly tapered microstrip line and for a pair of coupled lines with random nonuniformities. Moreover, the necessity of adopting a two-step perturbation in order to get a good accuracy is also illustrated- journalArticle
- info:eu-repo/semantics/article
- info:eu-repo/semantics/publishedVersion
- Technology and Engineering
- PARAMETERS
- SIMULATION
- UNIFORM
- DOMAIN
- Interconnect modeling
- nonuniform transmission line (NUTL)
- perturbation
- Telegrapher's equations
- LOSSY LINES
- TIME RESPONSE
- SERIES EXPANSION
- MULTICONDUCTOR TRANSMISSION-LINES