Koohestani, MohsenPires, N.Skrivervik, A. K.Moreira, A. A.2012-10-012012-10-012012-10-01201210.1049/el.2012.1771https://infoscience.epfl.ch/handle/20.500.14299/85828WOS:000307645300006Proposed is a new simple technique for achieving band rejection characteristics in ultra-wideband monopole antennas. Two band notches were added to an existing UWB antenna by gluing a padding patch printed on a small single-layer piece of commercial substrate. The design of the new proposed structure has a controllable rejection in the 5 GHz WLAN and 8 GHz ITU frequencies while maintaining a wideband performance from 2.9 GHz to more than 12 GHz based on VSWR <= 2. A good agreement between measurement and simulation was achieved. Measurements confirm that the technique introduces negligible antenna radiation pattern distortion except at the notched frequencies.text::journal::journal article::research article