Hysteresis loops in dielectric amplifiers

DIELECTRIC amplifiers are circuits which utilize the nonlinear characteristics of capacitors made with so-called ferroelectric materials as dielectrics. To predict the performance of a dielectric amplifier, the behavior of the nonlinear capacitor must be determined and some means of representing it analytically must be devised. The purpose of this paper is to investigate the behavior of a commonly used nonlinear capacitor under conditions encountered in dielectric amplifier circuits, to provide a basis for an analytical representation.