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引用次数: 1
摘要
自相似性和分形维度是分形图形的特点，可用于改进天线的设计。与一般天线相比，分形天线具有体积小和频带多两个明显优势。本文提出了基于 Y 结构的平面微带分形天线设计方案，研究了天线的角度、长度、阶次和结构分支总和等参数之间的关系，并在 0.8Ghz 至 5Ghz 范围内进行了仿真。为了获得最佳设计，在仿真过程中将逐一修改参数。特别是要关注天线的以下结果，如谐振频率、反射系数、辐射模式、辐射特性和增益等。仿真结果表明，基于分形 Y 结构的设计可以高效地缩小尺寸。这证明该设计适用于天线的小型化。
Design and Optimization of Plane Microstrip Fractal Antenna Based on Y Structure
Self-similarity and fractal dimension are the special features of fractal graphics, which can be applied to improve the design of antenna. Compared to general antenna, fractal antenna has two distinct advantages: smaller size and multiple bands. In this paper, the designs of plane microstrip fractal antenna which based on Y structure, was proposed and researched the relations between parameters of antenna about the angle, length, orders and sum of the structure branch, and simulated from 0.8Ghz to 5Ghz. In order to get the optimal design, they would be modified one by one and the parameters would be changed during simulating. Especially focusing on the following results of the antenna, such as the resonance frequency, the reflection coefficient, the radiation patterns, radiation characteristics and gain, etc. The results of simulation showed that the design could reduce the size with high efficiency, which based on the fractal Y structure. It is proved that the design is suitable for the miniaturization of antenna.
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