| 一种具有陷波特性的改进型Vivaldi 超宽带天线 |
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| 引用本文： | 刘亚峤,梁建刚,杨波,王光明.一种具有陷波特性的改进型Vivaldi 超宽带天线[J].微波学报,2016,32(6):23-26. |
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| 作者姓名： | 刘亚峤 梁建刚 杨波 王光明 |
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| 作者单位： | (1. 空军工程大学防空反导学院,西安710051; 2. 空军驻无锡地区军事代表室,无锡214063) |
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| 基金项目： | 国家自然科学基金(61372034) |
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| 摘 要： | 为了提高常规Vivaldi 天线低频段前向辐射增益,避免超宽带天线对某些已有频段的影响,提出了一
种覆盖1. 2 ~14 GHz 的具有陷波特性的高增益超宽带端射天线。该天线通过在辐射贴片两侧加载Y 形缝隙,有利
于天线表面电流向槽线汇聚,使天线的辐射特性明显提高。低频部分(1. 2 ~7. 5 GHz)的增益比原始天线提高最多2
dB,通过使用CSRR 结构,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。最终,对
天线实物进行加工和测试,进一步验证了设计的可靠性。
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| 关 键 词： | 超宽带 Vivaldi 天线 高增益 陷波特性 |
A Modified Vivaldi Ultra Wideband Antenna
with Notched Frequency Characteristics |
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| LIU Ya-qiao,LIANG Jian-gang,YANG Bo,WANG Guang-ming.A Modified Vivaldi Ultra Wideband Antenna
with Notched Frequency Characteristics[J].Journal of Microwaves,2016,32(6):23-26. |
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| Authors: | LIU Ya-qiao LIANG Jian-gang YANG Bo WANG Guang-ming |
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| Affiliation: | (1. Air and Missile Defence Collage,Air Force Engineering University,Xi''an 710051,China;
2. Millitary Representative Office in Wuxi,Wuxi 214063, China) |
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| Abstract: | This paper proposes a high gain ultra-wideband and end-fire antenna with notched frequency characteristics
which covers 1. 2 ~14 GHz band to overcome small forward gain at low frequency of conventional Vivaldi antenna, and avoid
the influence of other frequency ranges. By adding Y-shaped apertures on both sides of the radiation patch, the surface cur-
rent of antenna converges near the through line, so the radiation property is improved. The gain of low frequency part (1. 2 ~
7.5 GHz) is increased up to a maximum value of 2 dB compared with the original antenna. And it insulates the frequency
band of WLAN (5. 125 ~5. 825 GHz) by using CSRR structure to make sure the antenna with notched frequency characteris-
tics. At last, the test results of the fabricated antenna demonstrate the reliability of the design. |
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| Keywords: | ultra-wideband Vivaldi antenna high-gain notched characteristics |
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