3D-fractal rectangular Koch dipole and 3D-fractal Hilbert dipole antennas made of wires are introduced. Theses antennas exhibit lower resonant frequencies and small volume occupations. The performance characteristics of the proposed antennas are examined and compared with successive iterations for the same antenna height for the 3D-fractal rectangular Koch dipole antenna and for the same wire length for the 3D-fractal Hilbert dipole antenna. The radiation properties are considered including input impedance and VSWR as functions of frequency. Also resonant frequencies and their corresponding radiation resistance, quality factor Q and radiation patterns are presented.