| 圆极化微带贴片天线辐射和散射特性研究 |
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| 引用本文： | 洪涛,龚书喜,刘英,徐云学.圆极化微带贴片天线辐射和散射特性研究[J].电波科学学报,2010,25(2). |
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| 作者姓名： | 洪涛 龚书喜 刘英 徐云学 |
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| 作者单位： | 西安电子科技大学天线与微波技术重点实验室,陕西西安,710071;西安电子科技大学天线与微波技术重点实验室,陕西西安,710071;西安电子科技大学天线与微波技术重点实验室,陕西西安,710071;西安电子科技大学天线与微波技术重点实验室,陕西西安,710071 |
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| 基金项目： | 国家自然科学基金资助项目(60801042) |
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| 摘 要： | 提出了一种改进的宽带圆极化微带天线。该天线采用单端口、共面波导馈电。通过仿真优化,获得了32.7%的圆极化轴比带宽(AR<3dB),和47.6%的阻抗带宽(VSWR<2.0)。测量天线样机的阻抗带宽为44.4%,较好地吻合了仿真计算结果。最后,以设计天线为例,研究了圆极化微带贴片天线的辐射特性和散射特性,为圆极化天线雷达截面减缩技术打下了良好的理论和实验基础。
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| 关 键 词： | 圆极化 宽频带 微带天线 雷达截面 |
Radiation and scattering properties of circularly polarized microstrip antenna |
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| HONG Tao GONG Shu-xi LIU Ying XU Yun-xue.Radiation and scattering properties of circularly polarized microstrip antenna[J].Chinese Journal of Radio Science,2010,25(2). |
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| Authors: | HONG Tao GONG Shu-xi LIU Ying XU Yun-xue |
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| Affiliation: | HONG Tao GONG Shu-xi LIU Ying XU Yun-xue(Key Lab.of Antennas , Microwave Technology,Xidian University,Xi'an Shaanxi 710071,China) |
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| Abstract: | In this paper,an improved microstrip antenna fed by a CPW is proposed for circular polarization.Simulated results show that the 3 dB axial-ratio bandwidth of the proposed antenna can reach 32.7% while the impendence bandwidth(VSWR<2) of that can do 47.6%.Measured results show that the impendence bandwidth can reach 44.4%,agree well with the measured ones.The monostatic RCS and radiation characteristics of the reference antenna are investigated,which provides a theoretical and practical basis for the radar c... |
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| Keywords: | circular polarization broad band microstrip antennas radar cross section |
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