Studying the circuit switching order after failures for a shielded structure with triple modal reservation

The paper considers modal reservation (MR) which allows both increasing the circuit reliability and implementing the effect of modal filtering. A quasistatic analysis of the ultrashort pulse propagation was performed in structures with triple MR. It was assumed that the circuit is without failures if the boundary conditions at the ends of the conductors approximately correspond to 50 Ohms, and if one component of the system fails, a 0 or ∞is formed at one of the ends of the circuit. In particular, a triple MR significantly increases the resistance to ultrashort pulses. The optimal switching order was determined for the shielded structure with triple modal reservation. For this structure, a preferable circuit switching option was the one which produced the smallest voltage amplitudes (Umax) of the pulses resulted from the acting ultrashort pulse decomposition. Thus, the choice of this option provides the best protection against ultrashort pulses during the entire operation of the system. As a result switching option 3 is optimal.