Sierpinski Carpet Fractal Antenna

It consists of hexagonal radiation patch with two iterations of sierpinski square slots and coplanar waveguide feeding.

Sierpinski carpet fractal antenna. This paper presents the design of sierpinski carpet fractal antenna up to third iteration. Four resonant frequencies and three operation frequency bands can be observed. An impedance bandwidth of 3 4 37 4 ghz is achieved. This paper describes the design of modified sierpinski carpet fractal antenna which resonates at six frequencies 4 825 5 455 6 265 ghz and 6 805 8 02 and 9 145 ghz.

The model of the antenna is as shown in the figure 3. From result and discussion it can be concluded that the self similarity in the structure for the 4th iteration sierpinski gasket monopole fractal antenna is observed to possess multiband behavior. The proposed antenna is designed on fr4 substrate with dielectric constant of 4 4. A dual band antenna using a sierpinski carpet fractal geometry is designed which covers the multiband characteristics of fractals.

Different performance parameters like radiation pattern gain voltage standing wave ratio return losses are observed at all the frequencies. The antenna consists of a sierpinski carpet fractal radiator which reduces the overall size of the antenna and it is realized on top of a hilbert slot in the ground layer to achieve required impedance matching. The simulation of the basic structure resulted in an antenna size of 38 04mm 29 46mm. Fractal antenna is widely used due to the following important facts.

Figure 2 shows the design of a sierpinski carpet fractal antenna starting with a rectangular geometry of single patch antenna. This multiband sierpinski gasket monopole antenna can cover more than 10 bands in the frequency band of 0 6 ghz 16 ghz. Sierpinski carpet antenna based on fractal geometry are low profile antennas moderate gain and can be operated at multiband of frequencies leads to a multi functional structure. This type of wideband antenna displays high self similarity and symmetry.

W 0 264 h l 0 412h w reff 0 258 0 8 h 4. These fractal antennas are used in mobile phone and wi fi communications. Here for designing of this antenna we use sierpinski carpet fractal geometry. This paper presents a novel design of fractal antenna on a flexible substrate that operates in umts band universal mobile telecommunication system 1 92 2 17 ghz.

The antenna have been. A fractal antenna uses a self similar design to maximize the length or increase the perimeter of a material that transmits or receives electromagnetic radiation within a given volume or area. A compact hexagonal sierpinski fractal antenna for super wideband applications is presented. Cpw fed hexagonal sierpinski super wideband fractal antenna abstract.