Ali Bostani - Assistant Professor, Department of Electrical Engineering, American University of the Middle East (AUM),Kuwait,
Seyed Morteza Moghimi - R & D Research Scientist, MicrowaveSoft Company, Montreal, Canada.,

A novel method to develop an Ultra-Wide Band (UWB) antenna is proposed in which a defected ground structure technique is employed. The proposed design is Micro-strip fed slotted patch with an altered ground side. The Operating Band width of antenna is 3.1 GHz to 10.6 GHz. The design parameters of the antenna have been optimized using high frequency finite element based simulation software for the best gain, bandwidth and efficiency performance. Effectively directional radiation patterns and large impedance bandwidth has been observed from simulation results. The design parameters and the simulation results are all reported in this paper including the radiation pattern in different frequencies within the operating band. The proposed antenna is also fabricated and the measurement results are also presented in this paper.

UWB, Slot antenna, DGS