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工程设计学报
Chinese Journal of Engineering Design  2010, Vol. 17 Issue (5): 392-395    DOI:
    
Design of a novel copper-cash-shaped ultrawideband fractal printed antenna
 ZENG  Xian-Feng1, ZHANG  Chen-Xin1, ZENG  Hui-Yong1, XIE  Cong2
1. Missile Institute， Air Force Engineering University， Sanyuan 713800， China;
2. School of Science, Xi’an Jiaotong University， Xi’an 710049， China
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Abstract   CPW and fractal structure used together in antenna design have unique advantages in broadening the bandwidth of the antenna. A novel copper-cash-shaped ultrawideband(UWB) fractal antenna was proposed. By using fractal slot， the CPW-fed antenna had a wide bandwidth. Surface current distribution， return loss， directional patterns and gain of the antenna were investigated. Three iterative fractal antenna was fabricated and measured. The measured results show that the bandwidth is 2.6~16 GHz， larger than 6:1， and found in good agreement with the simulated results. Thus this antenna can be widely used in compact structure and UWB antenna design.

Key words： UWB antenna      fractal      CPW-fed     
Published: 28 October 2010
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ZENG Xian-Feng
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Cite this article:

ZENG Xian-Feng, ZHANG Chen-Xin, ZENG Hui-Yong, XIE Cong. Design of a novel copper-cash-shaped ultrawideband fractal printed antenna. Chinese Journal of Engineering Design, 2010, 17(5): 392-395.

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https://www.zjujournals.com/gcsjxb/     OR     https://www.zjujournals.com/gcsjxb/Y2010/V17/I5/392


新型古币形超宽带分形印刷天线的设计

共面波导和分形结构结合应用，在展宽天线带宽方面具有独特优势.提出了一种新型古币形超宽带分形天线，采用共面波导馈电，并加载分形缝隙，天线的阻抗带宽大幅提高.给出了天线的表面电流、回波损耗、方向图和增益结果.对3阶分形天线进行了加工与测试，测试结果表明，天线带宽达到2.6～16 GHz，带宽比大于6:1.仿真结果与测试结果基本吻合，为超宽带小型化天线的设计提供了新的思路．

关键词： 超宽带天线,  分形,  共面波导 
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