| 一种宽频带圆极化微带贴片天线设计 |
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| 引用本文： | 万涛.一种宽频带圆极化微带贴片天线设计[J].全球定位系统,2008,33(4):59-62. |
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| 作者姓名： | 万涛 |
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| 作者单位： | 中国电子科技集团公司第20研究所,西安,710068 |
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| 摘 要： | 利用双馈点法设计了一个覆盖GPS和GLONASS频段（1570MHz～1620MHz）的宽频带圆极化微带贴片天线。与传统单馈点圆极化贴片天线相比较，这类天线将辐射贴片与馈电网络集成在一起，可获得令人满意的阻抗及轴比带宽。在1．575GHz和1．610GHz时的实测天顶方向轴比均小于1．5dB，增益均大于4dB。该天线性能较好，加工调试简便，在卫星导航等领域具有广阔的应用前景。
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| 关 键 词： | 宽频带 圆极化 贴片天线 卫星导航 |
Design of Broadband Circularly Polarized Microstrip Patch Antennas |
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| WAN Tao.Design of Broadband Circularly Polarized Microstrip Patch Antennas[J].Gnss World of China,2008,33(4):59-62. |
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| Authors: | WAN Tao |
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| Institution: | WAN Tao(The Twentieth Institute of Electronic Science & Technology Corporation,Xi\'an 710068 China) |
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| Abstract: | A design of broadband circularly polarized microstrip patch antenna is proposed in this paper.This antenna is fed by two quadrature probes placed symmetrically on the two main axis to cover the band of GPS and GLONASS(1570MHz~1620MHz).Compared with traditional circularly polarized patch fed by one probe,good impedance bandwidth and 3dB axial ratio bandwidth are achieved by integrating radiate patch with feeding network in this antenna.Through testing,the zenithal axial ratios on the frequency of 1.575GHz an... |
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| Keywords: | Broadband circularly polarized patch antenna satellite navigation |
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