| 一种新型双陷波超宽带天线设计 |
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| 引用本文： | 刘起坤,邢锋,张广求.一种新型双陷波超宽带天线设计[J].微波学报,2011,27(1):40-43. |
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| 作者姓名： | 刘起坤 邢锋 张广求 |
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| 作者单位： | 解放军信息工程大学信息工程学院,郑州,450002 |
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| 摘 要： | 设计了一种新型双陷波超宽带印刷天线。辐射贴片底部为梯形结构,实现了良好的阻抗匹配。通过在贴片上加载两个U型缝隙,分别在中心频率3.5GHz和5.5GHz处产生陷波。比较陷波前后天线表面电流密度,并用传输线理论对陷波产生机理进行了分析。天线实测与仿真结果吻合,通带内天线辐射效果良好,陷波频段内增益下降超过5dB,达到了陷波抑制的效果。
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| 关 键 词： | 超宽带天线 双陷波 U型缝隙 传输线理论 |
Design of a Novel Planar Ultra-wideband Antenna with Dual Band-Notched Characteristics |
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| LIU Qi-kun,XING Feng,ZHANG Guang-qiu.Design of a Novel Planar Ultra-wideband Antenna with Dual Band-Notched Characteristics[J].Journal of Microwaves,2011,27(1):40-43. |
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| Authors: | LIU Qi-kun XING Feng ZHANG Guang-qiu |
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| Affiliation: | LIU Qi-kun,XING Feng,ZHANG Guang-qiu(Institute of Information Engineering,Information Engineering University of PLA,Zhengzhou 450002,China) |
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| Abstract: | A novel planar ultra-wideband antenna with dual band-notched characteristics is proposed.With the trapeziform structure at the bottom of radiating patch,good impedance match can be achieved.Meanwhile,two U-shaped slots are embeded into the radiating patch,to obtain the notched bands at the frequency of 3.5GHz and 5.5GHz.With and without the notched structure,the change of the current density on the surface of antenna is compared,and the cause of notched band is analyzed with the transmission line theory.The... |
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| Keywords: | Ultra-wideband antenna dual notched bands U-shaped slot transmission line model theory |
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