SNR Kron-Branin Model of Shielded Coaxial Cable under Burst Striking
Résumé
This paper develops a Kron-Branin (KB) model of shielded coaxial cable wire structures. The structure is assumed to be struck by kilovolt amplitude high voltage burst. The model is mainly constructed with Kron's graph and Branin's transmission line (TL) circuit. The equivalent graph topology of struck shielded cable structure is drawn. The graph consists essentially of branch, mesh, node and cord elements. The tensorial equation transducing the problem under study is reformulated with main unknown the branch currents. The fundamental solutions of the problem are represented by the calculated currents. The analytical expression of the signal-to-noise ratio (SNR) is established in function of the 4-kV amplitude perturbation strike with 5-V amplitude and 1-Gbps rate square wave data. A good correlation between analytical modeled and simulated SNRs from 50-MHz to 0.55-GHz is obtained.