Electromagnetic properties of multiphase composites containing barium strontium titanate and nickel zinc ferrite inclusions from 1-4 GHz

The growing importance of nonlinear transmission lines for pulsed power and high microwave devices in defense industrial applications motivates material development system optimization. This study investigates composites manufactured with various volume loadings both magnetic (nickel zinc ferrite) dielectric (barium strontium titanate) inclusions a silicone matrix. Increasing the fraction barium titanate (BST) nickel ferrite (NZF) increased permittivity stronger dependence on BST fraction. NZF permeability, while changing had no effect. DC breakdown voltage decreased exponentially Adding as little 5% to an composite more than doubled threshold compared containing alone. For example, adding 10% 15% strength by over 800%. combination tunability permeability managing fractions introducing make this promising approach designing input pulses hundreds kilovolts.