| 一种双频喇叭馈源的相位中心分析 |
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| 引用本文： | 黎娜. 一种双频喇叭馈源的相位中心分析[J]. 现代电子技术, 2012, 35(7): 98-100,104 |
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| 作者姓名： | 黎娜 |
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| 作者单位： | 西安机电信息技术研究所,陕西西安,710065 |
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| 摘 要： | 多模圆锥喇叭天线是一种应用较广的高效率喇叭天线,它被广泛应用于反射面初级馈源。双频多模圆锥喇叭天线在收发两个频率处的相位中心是不重合的,当其作为反射面馈源时,其相位中心及安放位置的确定对于反射面天线的性能有着不可忽视的影响。从天线相位中心的定义出发,计算了双频多模喇叭天线在收发频率处的相位中心,并对该天线在偏置反射面系统中的安放位置进行了分析,确定了馈源的最佳安放位置。
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| 关 键 词： | 多模圆锥喇叭 双频段 反射面馈源 相位中心 |
Analysis of phase center for a dual-band horn feed |
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| LI Na. Analysis of phase center for a dual-band horn feed[J]. Modern Electronic Technique, 2012, 35(7): 98-100,104 |
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| Authors: | LI Na |
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| Affiliation: | LI Na(Xi’an Institute of Electromechanical Information Technology,Xi’an 710065,China) |
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| Abstract: | The multiple-mode conic horn is a high-efficiency antenna which is widely used as the feed of reflectors.Phase centers of the dual-band multiple-mode conic horn at receive and transmit frequency are not superposed,so the ascertainment of its phase center and location in the reflector system has unneglected influence on the performance of the reflector system.The definition of the phase center of the antenna is proposed and the phase centers of the dual-band multiple-mode conic horn at receive and transmit frequency are calculated.Finally the optimal location of the feed in the offset reflector antenna is confirmed by the analysis and optimization. |
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| Keywords: | multiple-mode conic horn dual-band reflector feed phase center |
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