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一种用于GPS接收机的微带天线设计

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摘要 利用传输线模型和腔模理论设计了一款用于通信、导航、定位等领域的小型化、单个探针馈电的GPS微带天线,该天线工作在GPS第一载波L1(1 575G Hz),并给出了详细的设计过程采用陶瓷介质材料和在正方形辐射元上切角的方式分别实现了天线设计的小型化和右旋圆极化。通过软件仿真分析表明、该天线整体尺寸比普通GPS微带天线减小35%;在上半平面具有良好的右旋圆极化(RHCP)方向图,在广角范围内,RHCP电平大于交叉极化LHCP电平15dB以上,可以较好地抑制交叉极化和多径效应带来的干扰;阻抗匹配良好;并且该天线还具有结构紧凑,易于微波集成、电气和机械性能稳定的特性。
出处 《广东通信技术》 2011年第8期31-34,共4页 Guangdong Communication Technology
基金 国家自然科学基金项目资助(NO.60907041)
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参考文献9

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