Improving the frequency response of ceramic dielectrics for higher power applications in power electronic converters

High-voltage acceptor-doped barium-titanate ceramic capacitors are suitable for hybrid planar-integration of power-electronic converters. The dielectric material is useful in high-permittivity sub-structures at low fields and sub-structures with strong voltage-dependent permittivity at higher fields. The study designs a ceramic material suitable for nearly-constant tan-delta and permittivity of up to 1 MHz.