| 一种具有陷波特性的Vivaldi天线设计 |
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| 引用本文： | 涂升,焦永昌,宋跃,张福顺,张铮.一种具有陷波特性的Vivaldi天线设计[J].电波科学学报,2010(2). |
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| 作者姓名： | 涂升 焦永昌 宋跃 张福顺 张铮 |
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| 作者单位： | 西安电子科技大学天线与微波技术国防科技重点实验室; |
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| 摘 要： | 提出了一种具有陷波特性的新型超宽带Vivaldi天线。采用双Y巴伦实现了微带-槽线过渡,利用多阶阻抗变换器解决了宽带阻抗匹配问题。通过在微带线上添加狭缝,实现了对WLAN应用频段(5.125~5.825 GHz)的隔离,使该天线具有陷波特性。在仿真设计的基础上制作了实验模型,并对其进行了测量。实测结果表明:在超宽带UWB(Ultra Wide-Band)应用频带(3.1~10.6 GHz)范围内,除隔离频带(5.1~6.0 GHz)以外,该天线的驻波比VSWR≤2,辐射方向图定向性较好,且交叉极化较低,从而证明了该天线设计的实用性。
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| 关 键 词： | 超宽带 Vivaldi天线 微带-槽线过渡 陷波特性 |
Design of a band notched Vivaldi antenna for UWB applications |
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| TU Sheng JIAO Yong-chang SONG Yue ZHANG Fu-shun ZHANG Zheng.Design of a band notched Vivaldi antenna for UWB applications[J].Chinese Journal of Radio Science,2010(2). |
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| Authors: | TU Sheng JIAO Yong-chang SONG Yue ZHANG Fu-shun ZHANG Zheng |
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| Affiliation: | TU Sheng JIAO Yong-chang SONG Yue ZHANG Fu-shun ZHANG Zheng(National Key Laboratory of Science , Technology on Antennas , Microwaves,Xidian University,Xi'an Shaanxi 710071,China) |
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| Abstract: | A novel Vivaldi antenna for UWB applications is proposed in this paper.The wide impedance bandwidth,from 3.1 to 10.6 GHz,is realized by using a quarter-wave impedance transformer of 3 steps combined with a double-Y balun for microstrip/slotline transition.Meanwhile,by inserting slot onto the strip-line,a suitable notched band has been obtained,which is from 5 to 6 GHz for the WLAN applications.The experiment prototype is fabricated and measured.Both the simulated and measured results demonstrate that the vo... |
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| Keywords: | ultra-wideband Vivaldi antenna microstrip-slot transition band-notched |
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