Factors effect on Hilbert fractal antenna performance

As effective solution on the design of miniature antennas, Hilbert fractal antenna has attracted much attention since it was advanced. Because of the characteristics of large fractal dimension, high miniature extent, good self-filled ability etc, the Hilbert curve is used in many new-designed antennas which are proposed in recent scientific papers. However, the current research on this antenna type home and abroad is mainly focused on how to improve the performance itself, but a certain extent ignores the other actual engineering-oriented factors, which will slower the antenna application course. So, this paper researches the impacts of feed point, medium backboard and ground plane on the Hilbert fractal antenna respectively, analysis the relation between them and the main antenna parameters, for instance working frequency, VSWR, bandwidth, and expatiate its general law. Also, this paper proposes design method of the Hilbert fractal antenna which is beneficial to its application.