小型化超宽带分形天线

International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. Pub Date : 2004-09-05 DOI:10.1109/ICEEC.2004.1374541

H. Ghali

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引用次数: 0

摘要

空间填充曲线被用于小型化超宽带分形线单极天线的研制。对几种空间填充曲线进行了研究和比较。电阻加载被用于实现超宽带性能。此外，还采用遗传算法对电阻负载的取值和位置进行了优化。实现了一个多频代价函数，其中代价函数是VSWR和效率的组合。在第二次迭代希尔伯特线单极子上使用三个电阻实现了以1.2 GHz为中心的108%(约1.3GHz)带宽。所提出的超宽带第二次迭代希尔伯特单极线天线在整个频段内的最小辐射效率为30%，最大增益为5.9dB。该天线的占地面积仅为7x7cm2。对天线回波损耗进行了测量，并与仿真结果进行了比较。利用SuperNEC®电磁模拟器进行了设计和仿真。

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Miniaturized ultra wideband fractal antenna

Space-filling curves have been used for the development of a miniaturized ultra wideband fractal wire monopole antennas. Several space-filling curves have been investigated and compared. Resistive loading has been used to achieve the ultra wideband performance. In addition, genetic algorithm has been applied to optimize both the values of the resistive loads and their positions. A multi-frequency cost function is implemented, where the cost function is a combination of VSWR and efficiency. A bandwidth of 108% (about 1.3GHz) centered at 1.2 GHz has been achieved using three resistances on a 2nd iteration Hilbert wire monopole. The proposed ultra wideband 2nd iteration Hilbert wire monopole antenna has a minimum radiation efficiency of 30% over the entire frequency band, and a maximum gain of 5.9dB. The proposed antenna has a footprint of only 7x7cm2. Measurements of the antenna return loss has been performed and compared successfully with the simulation results. The design and simulation have been carried out using SuperNEC® electromagnetic simulator.

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International Conference on Electrical, Electronic and Computer Engineering, 2004. ICEEC '04.

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