| 1. | Just as nb antenna array the pattern of uwb tem - horn antenna array is concern with the number and distance of elements at which the pattern lie in
阵列某一面方向图仅与这一面的单元个数及单元间距有关与其它面的阵列单元个数和单元间距无关。
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| 2. | On the assumption that a cabin and a horn antenna were under the bottom of an airplane , fdtd method was applied to analyze the antenna patterns which are generally affected by the body of the airplane
摘要假定飞机腹部加装了某一形状的炮舱和矩形喇叭天线，用时域有限差分法( fdtd )分析了这样的外形对天线辐射特性的影响。
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| 3. | Then , using the opening transmission line model , the deduction of the tem - horn antenna far - field radiation formula is introduced . comparing with the traditional nb antenna array , the brief theory of uwb antenna is analyzed
然后介绍了应用开路传输线理论模型对tem喇叭天线轴上远场辐射的推导过程，并对比传统窄带天线阵列，分析了超宽带天线阵列的一般工作原理。
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| 4. | Secondly , in this paper , the four typical uwb antennas of tem horn antenna , log - periodic antenna , biconical antenna and helical antenna are theoretically analyzed and the uwb antenna design methods are generalized and discussed
其次,本文对tem喇叭天线、对数周期天线、双锥形天线和螺旋天线四种典型的超宽带天线进行了理论分析,总结并讨论超宽带天线的设计方法和手段。
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| 5. | It has the good qualities of both tem horn antenna and dipole antenna , less dimensions construction , good direction and higher efficiency . its impedance and radiation are analyzed . good agreements are obtained from experiment and calculation
这种平面喇叭天线采用了新型的平衡馈电方式，结构简单，性能良好，同时结合了tem喇叭和振子天线的优点，结构维数低，具有较强的方向性、较高的效率，在uwbsar轨道系统实验中取得了比较理想的结果。
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| 6. | In this paper , the signal processing of sum and difference patterns of amplitude dual - plane monopulse radar and the effect of amplitude - plane non - consistency are analyzed from the coordinates relationship of four - horn antenna at length , and its corresponding simulation is verified , which bring convenience to engineering implementation
文中从四喇叭天线的位置坐标关系，详细分析了双平面振幅和差式单脉冲雷达信号处理过程以及三通道幅相不一致性的影响，并且进行了相应的仿真，为工程实现带来了很大的便利。
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| 7. | Four tem - horn antennas have been made . using these antennas two - element rain gutter tem - horn array , two - element stacked tem - horn array , four - element rain gutter tem - horn array and four - element stacked tem - horn array are been mades up of . the results of experiment accord with theory and numerical stimulation
最后，对tem喇叭天线阵列进行了原理性实验研究，设计了带地板结构的半tem喇叭天线，组成二元槽状阵列、二元叠状阵列、四元槽状阵列、四元叠状阵列等，应用小信号测试，得到的结果与理论和数值模拟相一致。
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| 8. | The works of this paper are mainly about the study for ultra wide - band ( uwb ) signal radiating - designing for effective uwb antenna , and uwb signal scattering - investigating of composite scattering for targets upon ground . firstly , the radiating characters of uwb signal and development of uwb antenna are discussed an uwb planar horn antenna is designed this antenna is characterized with u - balun , simple construction and perfect performance
本文的研究是“九五”国防预研“超宽带( uwb )雷达体制及关键技术研究”项目工作的一部分，主要包括两方面内容：超宽带信号的辐射-高效超宽带天线的研制；超宽带信号的散射-地表目标的复合散射研究。
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