Design of a compact ultra wide band microstrip patch antenna

This paper deals with a new compact, ultrawideband (UWB) antenna using a coaxial probe feed technique by introducing some slots in the square patch of 20mm × 20 mm. The proposed antenna is designed to operate from 1.82 to 3.72 GHz with the center frequency at 2.20 GHz. Size reduction of 83% is also presented in this paper. The antenna has nearly good Omni-directional radiation pattern and peak gain of 3.65 dBi. The group delay profile of the proposed antenna lies within 1ns. The areas of applications are medical imaging, wireless communication, and vehicular radar. Theoretical investigations have been done by An soft designer software.