This novel approach of multiband monopole antenna for ultra-wide band applications with triple and quad band-notched function has been proposed. The proposed design of a horn shape monopole patch antenna, which provides a wide usable fractional bandwidth of more than 88% (2-15GHz).Which covers WLAN, UWB (IEEE 802.15.3a, 3.1-10.6GHz)applications with a gain of 3.632dB at 10GHz frequency, and the return loss of -15.3782 dB, -13.0252 dB,-24.5378 dB and -20.5882dB. Bidirectional radiation patterns with a stable gains over the operating bands were obtained, which makes the antenna good for dual-band and multi-band wireless communication applications. The proposed antenna was fabricated with different dielectric material. The designed multi-band antenna has a substrate size of 20*30 mm2 and covers the frequency bands at 2, 4, and 5.16-9.81GHz. Dual-band and triple- band antennas are simulated and good results were obtained. The substrate of measurement includes Flame Retardant 4 (FR4) epoxy with its relative permittivity of4.4 and its height is 1.6mm.
