Several divalent cations together with tetravalent Ti⁴⁺ ion were replaced by two trivalent Fe³⁺ ions of barium hexaferrite in the form of BaFe₁₀M²⁺Ti⁴⁺O₁₉. Samples were prepared by using solid state reaction route and 1 wt% B₂O₃ was added to inhibit the crystal growth at lower temperatures. Magnetic, dielectric and microwave properties of samples were investigated by X-ray crystallography, scanning electron microscopy, magnetization and near field microwave measurements. Magnetization measurements revealed that saturation magnetization of the cation substituted samples is less than that of the pure barium hexaferrite. Except Co²⁺ substituted barium hexaferrite, coercivities of the samples are nearly 1 kOe. While measurement of dielectric constants of Zn²⁺, Mn²⁺, Co²⁺ and Cu²⁺ substituted samples yields a significant enhancement (≈10–10² times) with respect to Ni²⁺ substituted barium hexaferrite in permittivity through local polarization of Fe³⁺ electronic charges activated with nearby divalent ions. It is suggested that Zn²⁺ and Mn²⁺ substitution acts to reduce the electron hopping probability between Fe²⁺ and Fe³⁺. All samples have approximately the same microwave absorption properties in such a way that minimum reflection loss (RL) of −10 dB occurs at 15 GHz. Meanwhile, Zn²⁺ and Mn²⁺ substituted samples have quite wide absorption bandwidths of 4 GHz at −10 dB.