Characteristics of UWB antenna and wave propagation

This paper proposes an omni-directional UWB antenna pattern in azimuth cut, low voltage standing wave ratio (VSWR), and easy to construct antenna for ultra wideband (UWB) systems. The designed antenna uses the multi circular blade configuration with a radiating element and on two different ground planes (square and circular ground shape). The multi-circular blades UWB antenna suitable for IEEE 802.15.3a and IEEE 802.16 UWB communication applications at 3.1-10.6 GHz and 2-11 GHz bands is presented and in specification. This paper discusses the phenomenon of dispersal in UWB antennas and presents a simple design to evaluate the radiated fields from antennas structures. About the characteristics of UWB antenna of antenna bandwidth, antenna efficiency, co-polarization, cross-polarization and pattern integrity are discussed and measured and compared. New multi-blades circular metal for orthographical monopole UWB antenna design and enhanced which measured results exhibit extend return loss bandwidth and lower omni-directional pattern deviation in azimuth cut and lower pattern ripple. The antenna design allows a quick assessment of dispersion in design. The proposed multi-circular blades UWB structures is capable of achieving broadband and omni-direction at azimuth cut characteristics within 2-1 IGHz for UWB wireless communication applications and experiment.