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频率扫描天线
相关语句
  frequency scan antenna
     The numerical calculations show that the grating, as a frequency scan antenna, can produce perfect blazing in a wide range of incident angle only through adjusting the size of width and depth of the groove no matter Bragg condition is satisfied or not.
     对这种光栅作为频率扫描天线的计算显示出,不论满足或不满足布喇格条件,在较宽的角度范围内入射,经调节槽宽和槽深都可获得理想的耀射。
短句来源
  “频率扫描天线”译为未确定词的双语例句
     It demonstrates the general project of vehicles mutual moving-state detection and control system, which use a frequency modulated continuous wave (FMCW) radar with the antenna replaced by a frequency scanning array as the basis of detecting sensor.
     文中阐述了汽车相互运动状态监控系统的总体方案,使用调频连续波(FMCW)雷达作为探测传感器的基础,并在天线部分作了改进,采用了独立的频率扫描天线
短句来源
     It is a property for practical application as a frequency scanning antenna since it ensures a stable radiation pattern with little distortions while beam is being scanned.
     对频率扫描天线能保证当波束扫描时,可以保持一个相对稳定不畸变的辐射方向图。
短句来源
  相似匹配句对
     The Analysis of Scanning Umbrella Antenas
     伞形天线扫描分析
短句来源
     The Effects of Step Frequency and Conical-scan Antenna on the Target Echo Wave Signal
     频率步进圆锥扫描体制天线对目标回波信号的影响
短句来源
     Frequency response of the RF antenna has been tested.
     测试了RF天线频率特性。
短句来源
     Simulation of Antenna Scan Based on Simulink
     基于Simulink的天线扫描仿真
短句来源
     Novel frequency-fixed beam-scanning microstrip eaky-wave antenna with phase-shifter
     新型频率固定相控波束扫描微带漏波天线的研究
短句来源
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The electromagnetic field problem of a rectangular grating illuminated with TM wave is studied theoretically by means of rigorous field-matching and moment method. The numerical calculations show that the grating, as a frequency scan antenna, can produce perfect blazing in a wide range of incident angle only through adjusting the size of width and depth of the groove no matter Bragg condition is satisfied or not. Higher efficiency and broader frequency band of - 1 order diffraction wave can be achieved only...

The electromagnetic field problem of a rectangular grating illuminated with TM wave is studied theoretically by means of rigorous field-matching and moment method. The numerical calculations show that the grating, as a frequency scan antenna, can produce perfect blazing in a wide range of incident angle only through adjusting the size of width and depth of the groove no matter Bragg condition is satisfied or not. Higher efficiency and broader frequency band of - 1 order diffraction wave can be achieved only at the larger reciprocal incident angle. And very broad frequcncy band can be expected when the grating is employed as a reflecting mirror in an orotron. The effective grating position and phase change of reflection wave by grating are also numerically presented.

本文从严格的场匹配方法出发,对电磁波在矩形截面光栅上的反射和衍射进行了理论研究。对这种光栅作为频率扫描天线的计算显示出,不论满足或不满足布喇格条件,在较宽的角度范围内入射,经调节槽宽和槽深都可获得理想的耀射。对于不满足布喇格条件,在两个互易角中较大的一个入射时,-1次衍射波有较高的效率和较宽的频带。而对这种光栅作为奥罗管中反射镜的特性的理论计算指出,它具有极宽的频带。同时本文还给出了不同频率平面波垂直入射时的等效光栅位置,以及电磁波在光栅表面反射时所引起的相位改变。

A new antenna structure consists of modified suspended substrate microstrip line with multilayer dielectric is proposed for getting desirable leaky characteristics. It is demonstrated that a suitable choice of the structure dimension can guarantee the antenna working in the antenna-mode region to make the antenna operate in an efficient way. Besides, very flat variation of the leakage constant with frequency can be achieved. It is a property for practical application as a frequency scanning antenna since it...

A new antenna structure consists of modified suspended substrate microstrip line with multilayer dielectric is proposed for getting desirable leaky characteristics. It is demonstrated that a suitable choice of the structure dimension can guarantee the antenna working in the antenna-mode region to make the antenna operate in an efficient way. Besides, very flat variation of the leakage constant with frequency can be achieved. It is a property for practical application as a frequency scanning antenna since it ensures a stable radiation pattern with little distortions while beam is being scanned.

提出了一种多层介质悬置微带线天线结构,以改善天线的频扫特性。分析表明该结构不仅可以确保天线工作在效率较高的天线模工作区,而且它的泄漏常数在相当宽的范围内随频率都能平坦地变化。对频率扫描天线能保证当波束扫描时,可以保持一个相对稳定不畸变的辐射方向图。

 
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