基于左手材料的分形天线的研究.doc

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摘  要： 本文设计了不同类型的分形天线的方法，并相应地作出了对比，利用分形的特性来改善天线的辐射特性。在此基础上嵌入了左手材料，并用计算机仿真软件HFSS模拟了各项参数，与普通天线对比，分形贴片与左手材料对天线性能的影响。通过对比，我们发现所设计的分形天线能有效地减小天线地物理面积，回波损耗、驻波比等参数，左手材料可以有效提高增益，从而改善天线的性能。

关键词：分形，左手材料，驻波比，增益

Study on Fractal Antenna Based on LHMs

Abstract： Fractal antenna design method for different types and accordingly made a comparison, using fractal features to improve the radiation characteristics of the antenna. Based on this LHMs are embedded in, and we can use computer simulation software HFSS to simulate the various parameters, compared with an ordinary antenna, the impact of fractal patch antenna with left-handed material properties. By contrast, we find fractal antenna design can effectively reduce the antenna to the physical area, S11, VSWR and other parameters, left-handed material can effectively increase the gain, thereby improving the performance of the antenna.

Keywords:  fractal, LHMs, VSWR, gain