研究了一种利用近场测量技术全息成像相控阵天线口径幅相的方法。
A holographic technique is investigated for amplitude and phase distributions in the aperture of a phased array antenna by using near field measurements.
接着求出口径上的电磁场，进而归纳出抛物面天线口径场的四大共同特征。
Next the electromagnetic field on aperture was found, and then proceeded to sum up five common features of aperture field of parabolic antenna.
超分辨谱估计技术可以在不增大天线口径的情况下提高米波雷达的方位角分辨力。
Azimuth resolution of meter wave radar can be improved by using super resolution spectrum estimation methods without extending the antenna aperture.
通过分析工作门限对不同天线口径地球站的影响，给出了一种新的工作门限设计方法。
Based on the analysis of the influence of working threshold on earth stations which are equipped with antennas of different apertures, a new design method of working threshold is proposed.
最后根据焦点的“位迁”，在导出极点与极线式的基础上，阐述了各型镜面天线口径场的独有待色及其成因。
Lasty, according to the focus displacement, and on the basis of pole and polar line formula had been derived, expounded the on...
该文从能量守恒观点出发，讨论了副面为椭圆的环焦天线的口径场分布，并导出了计算其方向图的简单表达式。
The aperture field distribution of the ring focus antenna is reviewed in view of the energy conservation law, and the simple formula for calculating its radiation pattern is deduced.
给出了一种两宽带天线共用一个口径的设计。
A design of two wideband antennas sharing one aperture is proposed.
有源结构中以波导口径相控阵天线为例，将透明源技术与辅助场FDTD结合起来，并提出了一种分析三角形栅格阵列的方法。
Waveguide aperture phased array antenna is analyzed using the transparent source technique and the auxiliary fields FDTD. A method to calculate triangular lattice array is put forward.
本文利用全波分析，建立了口径耦合微带天线的谱域积分方程，并用矩量法求其数值解。
Applying the full wave analysis for aperture coupled microstrip antennas, the spectral domain integral equations are founded and solved numerically by the method of moments.
本文对一种直线阵馈电抛物柱面天线进行了研究，并给出了抛物柱面和馈源的口径场分析方法以及仿真结果。
This paper makes research on parabolic cylindrical antenna with feed for linear arrays, generates aperture-field analysis methods and simulation results of parabolic cylinder and feed.
空间大型环形可展天线具有展开口径大、质量轻、柔性大等特点，是一个典型的多柔体结构。
The large Hoop Truss Deployable Antenna (HTDA) in the space, with large aperture, light mass, big flexible character and so on, is type flexible multi-contact system.
研究了目标在聚焦口径天线焦点的散射问题。
This paper discusses the backscattering by a target placed in the focal plane of a focused aperture.
批量生产的不同口径及频段的这类天线已用于微波通信系统中。
Antennas of various apertures and bands are already in mass production and have been put into use in microwave relay communication systems.
研究了8米口径智能天线结构在随机风荷作用下其保精度闭环控制随机响应问题。
The problems of guaranteed precision of random dynamic response of closed loop system of 8-meter intelligent caliber antenna under random wind excitation are studied.
为提高辐射效率和扩展工作带宽，对一种口径耦合馈电的多层介质高温超导微带天线进行了设计。
To increase the radiation efficiency and broaden the operation bandwidth, an aperture-coupled microstrip antenna of high temperature superconductor with multi-layer substrates is designed.
此处采用在光壁圆锥喇叭内加载一个外形渐变的金属柱体来改变天线的输入阻抗，调节金属柱体的尺寸，包括两端的口径和长度，可以在要求的频段得到理想的输入阻抗。
By modeling the parameters of metal cylinder such as the diameters of both ports and the length of the metal cylinder, the demand input impedance of the conic horn can be obtained.
毫米波介质透镜天线是一种高方向性的口径天线。
Millimeter-wave dielectric lens antenna is a kind of aperture antenna with high directivity.
将回光反射人工标志成功应用于天线面型检测中，通过17.2米某星载天线与50米口径天线测量，验证了编码标志在自动化测量中发挥的重要作用。
The Retro-reflective targets and coded targets were applied successfully in detecting shapes of an antenna with a diameter of 17.2m loaded on a satellite and another lager one with a diameter of 50m.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
采用数值积分方法分析了圆口径天线非轴向近场分布特性。
The near-axis field distribution of circular aperture antennas is obtained by numeric integration method.
文中的第三个研究内容是不同口径分布实现相控阵天线方向图低副瓣的方法。
The third content of the paper is the method which implements the low side-lobe phased array antenna with different aperture distribution.
偏置抛物面无线在小口径天线中得到了广泛的应用。
Offset paraboloid antenna has widely been utilized in small aperture antennas.
然后在设定由随机表面误差引入的口径相位误差服从均值为零的正态分布的条件下，推导了天线平均功率方向图的计算公式。
Secondly, on the assumption that the phase error on the aperture led by the random surface error obeys the Gaussian distribution with zero mean, the expression of the average power pattern is deduced.
采用口径场绕射积分求取了天线的近场及远场方向图，绘制了波束宽度、方向性和最大副瓣电平三个关键参数随场点距离的关系曲线。
Three key parameters, namely beamwidth, directivity and maximum sidelobe level, are drawn versus the distance between field points and the center of aperture.
研制了的小口径天线毫米波辐射计自然变温智能定标系统，该系统实现了所有数据的自动采集与分析。
An intelligent calibration system with temperature of blackbody naturally varying used for small antenna MMW radiometer was developed.
首先，文中阐述了车载双频段、共口径、宽波束圆极化微带天线的设计要求。
Firstly, the requirements of the parameter for the dual-band, common-caliber, wide beam-width and circular polarization antennas are presented.
本课程的讲述内容主要包括：1、新型口径天线；
The contents of this course include: (1) new aperture antennas;
当目标处于聚焦天线焦平面上时，可通过选择口径分布来提高目标的后向散射功率。
When a target is placed in the focal plane of a focused aperture antenna, the backscattered power from the target may be greatly enhanced by properly choosing the aperture distribution.
当目标处于聚焦天线焦平面上时，可通过选择口径分布来提高目标的后向散射功率。
When a target is placed in the focal plane of a focused aperture antenna, the backscattered power from the target may be greatly enhanced by properly choosing the aperture distribution.
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