Uniformly Bootstrapped Cable for the Key Distribution System Using Resistors and Noise Sources

Abstract

Waveguide analysis indicates that a triaxial cable with uniform bootstrapping is a transmission line with an adjustable characteristic impedance. When the bootstrapping level is high, the characteristic impedance is high. The cable capacitance is reduced while the cable inductance is increased. Simulations confirm that the transmission-line circuit and the lumped-element circuit, including the mutual inductance, generate the same results for the key distribution system using resistors and noise sources.