Research of fractal technology in the design of multi-frequency antenna

Fractal technology has great potential in antenna miniaturization, multi-frequency, ultra-wideband application, and this paper are about fractal technology in the application of multi-frequency microstrip antenna. Based on the fractal structure design of Sierpinski, we studied the multirate characteristics of nested triangle fractal monopole antenna, using electromagnetic field simulation software Microwave Studio. We investigated the antenna structure antenna center band and reflection losses by changing the parameters so as to control the multirate characteristics of antenna. The similarity of the fractal structure determines the similarity of the current distribution, and the different distribution of electric current scale determines the similarity of fractal antenna with multi-frequency characteristics. Fractal technology in antenna field has become the domestic and foreign research hotspot.