A study of printed monopole antenna for ultra wideband applications

A printed monopole with coplanar waveguide fed antenna for ultra-wideband applications is proposed. The proposed antenna includes a rectangle-shaped patch as a radiator, two ground planes with symmetrical notch, and feed excitation. It covers the all ultra wideband (UWB 3.1-10.6 GHz) and has 7.8 GHz (2.8-70.6 GHz) measured return loss bandwidth. In modifiable design, we choose to design the notches on the ground plane, the height of the proposed antenna, and the width of the radiator, and have to obtain broad impedance bandwidth and accessible measurement parameters. The experiment results have shown acceptable omnidirectional radiation pattern and, fine gain in this paper. (c) 2007 Wiley Periodicals, Inc.