Note on antenna design in UWB wireless communication systems

Requirements for the antennas in wireless communication systems are presented, from a systems point of view. Differences between narrowband and ultrawideband systems in assessing system performance are discussed. Several parameters are introduced for the antennas in ultra-wideband wireless communication systems, to evaluate the performance of antennas based on the system requirements. As an example, a transmitting/receiving antenna system comprising two identical planar bow-tie antennas is analyzed numerically and experimentally in both time and frequency domains. By the introduced parameters, the effects of source and template pulses on the performance of the antenna system are also investigated.