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将分形几何应用于天线设计可以产生具有多频段或小型化特征的分形天线。传统的多频段分形天线Sierpinski垫片天线由于是有限次迭代生成的,它存在截取效应低端谐振频率比值几乎是其几何相似性因子的两倍,从而限制了其实际应用。本文针对一种小型化的加载型Sierpinski垫片天线进行了有效的研究,证实了加载对降低天线高端谐振频率的有效性,同时分析了结构参数对其工作频段的影响并提出了增大天线张角的方式以进一步小型化天线。
The application of fractal geometry to antenna designs can produce fractal antennas with multi-band or miniaturized features. The traditional multi-band fractal antenna Sierpinski shim antenna, which is generated by a finite number of iterations, has an interception effect and its low-end resonant frequency ratio is almost twice its geometric similarity factor, which limits its practical application. In this paper, an effective research on a miniaturized Sierpinski padded antenna is carried out. It is verified that the loading is effective to reduce the high-end resonant frequency of the antenna. At the same time, the influence of structural parameters on the working frequency band is analyzed. Way to further miniaturize the antenna.