Striplines with Dispersive Substrates
نویسندگان
چکیده
Transmission line theory and a genetic algorithm are used herein for extracting per-unitlength parameters of microstrip or striplines with dispersive dielectric substrates. S-parameters of the line section are measured and used as an objective function for global optimization. The discrepancy between the modeled and measured results is minimized over all the frequency range of interest. Wave equations for a single TEM mode with complex propagation constant dependent on frequency are used. Then the primary per-unit-length R,L,G,C parameters of the transmission line are calculated using the represented formulas. In a multiconductor geometry numerical cross-sectional analysis tools can be used instead of transmissionline equations.
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