Abstract: In this paper microstrip patch antenna is designed for ultra wide band application. Giuseppe Peano algorithm is applied on microstrip patch antenna with rectangular patch of size 30× 24 mm2. Coaxial Feed line is used with the patch antenna and results are carried out by using FR-4 as dielectric substrate. The proposed antenna obtained an ultra wide band of 4.94GHz bandwidth having minimum return loss of –32.73dB. The maximum gain produced by the proposed antenna in this ultra wide band range is 2.37 dBi. Hence, the proposed antenna covers C and X band so it can be used for RADAR applications. The change in antenna height is also analysed. Design and simulation is carried out using IE3D simulation software.

Keywords: Microstrip patch antenna, FR-4 substrate, Giuseppe Peano fractal geometry, coaxial feed line. IE3D software.