Design and Analysis of Tri-bandsTriangular Shape Fractal Antenna for Wireless Applications

Abstract In this paper fractal antenna is proposed for wide band applications. Proposed Antenna is having resonance frequency of 5 GHz and it has triangular patch with 36mm base and 36mm height. This antenna design is used to obtain multiband behavior and wide band characteristics by which antenna can be cover various applications in wireless communication. Antenna has been made with 4 iterations and the result obtained for the proposed antenna is in agreement for the various efficient wireless applications. The fractal antenna here described, is basically the Sierpinski gasket with fragmented geometrical shape with various subdivisions. The proposed antenna has been designed using FR4 substrate with width and length of 4cm. In Proposed Antenna, there are three bands at frequencies 4.8-5.9 GHz, 7.1-7.4 GHz, 8.2-8.9 GHz and bandwidth percentages are 20.56%, 4.13% and 8.19%. And in final iteration there are tri bands and our proposed fractal antenna cover applications in 4.8-5.9 GHz, 7.1-7.4 GHz, 8.2-8.9 GHz. The simulated gain of antenna is 7.5dBi and the directivity of proposed antenna is simulated as 7.422 dBi. The proposed antenna has been implemented successfully using IE3D and the result has been tested successfully using vector network analyzer. Keywords: Fractals; Fractal Antenna; Sierpinski Gasket Fractal Antenna