Design of the Composite Fractal Embedded Slot Monopole Antenna

In this paper, the rectangular nested fractal and Cantor fractal slot are skillfully fused together, and the composite fractal embedded slot radiation structure is creatively designed. It combines the microstrip monopole antenna of high radiation intensity and excellent directional radiation capability with the microstrip Balun feed structure of wide frequency range and step-by-step impedance matching capability to design composite fractal embedded slot monopole antenna that can meet the performance requirements of BeiDou Navigation Satellite System. Actual test results show that the antenna has the advantages of both a high-performance redundant antenna and a directional radiation antenna and can completely cover the BeiDou Navigation Satellite System working for the frequency band. It is a high-performance satellite positioning antenna with strong application potential.