A parametric study of band-notched UWB planar monopole antennas

Due to the collocation of the UWB frequency band with frequency bands reserved for narrowband wireless technologies, there is a need in the UWB device to provide filtering in those bands to avoid interference from, or causing interference to, narrowband devices. In this paper, a parametric study of a planar monopole antenna with a simple etched band-notching feature is presented. Results obtained using numerical simulation are presented which demonstrate the degree to which notch bandwidth can be varied and good wideband performance can be maintained with this antenna.