%0 Journal Article %@ 0895-2477 %A Gómez Calero, Carlos %A Taha Ahmed, Bazil %A Martínez Rodríguez-Osorio, Ramón %D 2010 %F upm:8354 %I Wiley-Blackwell %J Microwave and Optical Technology Letters %K ultra-wideband;planar antenna;notch filter %N 1 %P 213-216 %R 10.1002/mop.24845 %T A Novel Ultra-Wideband Frequency Planar Notch-filter Antenna. %U https://oa.upm.es/8354/ %V 52 %X Many research works have emerged for ultra-wideband (UWB) systems. One important issue is the antenna design to cover all frequency bands (3.1–10.6 GHz). In most applications, a reduced compact antenna is needed but with several requirements. In this paper, a novel triangle–semicircular planar monopole UWB antenna is presented with a notch filter to avoid the undesirable interferences in ISM (Industrial, Scientific and Medical) band at 5.3 GHz.