Aimed at the phenomenon of the antenna radiation pattern distortion during the simulation, the paper studies and verifies their causes, and gives a conclusion.
针对在仿真过程中出现的天线辐射方向图变形的现象，文章研究并验证了其产生原因，并得出相关结论。
This paper investigates the effect of reflector surface distortion on the antenna radiation pattern, and gives some reasonable criteria for reflector antenna structure design.
本文基于机电一体化的设计思想，研究了反射面变形对无线辐射特性的影响，给出了设计反射面无线结构的一些合理准则。
The antenna radiation pattern and antenna coupling or isolation as well as near electric field strength are measured by using anechoic chamber as the test site of ship model prediction.
采用电波暗室作为船模预测的试验场地，进行天线方向图、天线耦合度(或隔离度)、近区场强等参数测试。
In this thesis, we reported a reconfigure antenna that is able to radiate different topologies of radiation pattern.
在这篇论文中，我们提出一种可动态辐射不同增益场型的天线系统。
The electric characteristic parameters of this novel sleeve antenna are calculated, including the input impedance, voltage standing wave ratio (VSWR), horizontal gain and radiation pattern.
研究了这种新型套筒天线的输入阻抗、电压驻波比（VSWR）、增益及辐射方向图等电特性。
Using the moment method, the antenna and surface currents of aircraft are calculated. Finally, the radiation pattern of a D-type-no-man aircraft is induced.
用矩量法计算了飞机天线及其机身表面的电流分布，推导了飞机天线的辐射方向图。
Then introduced the theoretical basis of the antenna design and performance parameters: including the circuit parameters and radiation pattern.
接着介绍了天线设计的理论基础和性能参数：包括电路参数和辐射参数。
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.
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。
On the base of the amplitude and phase distribution derivated from the synthesis procedure, the radiation pattern is synthesized and the feed system for the phased array antenna is designed.
在综合求解阵列天线幅相分布的基础上，分析计算了阵列天线的辐射特性，设计了相控阵的馈电网络。
Combination of ladder approach method and equivalent circuit model of slot antenna had been used to analyze its input impedance. Finally, GTD had been used to calculate the radiation pattern.
利用阶梯近似方法结合缝隙天线电路模型分析其输入阻抗，最后采用GTD方法计算该种天线的辐射方向图。
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。
The results of this paper can be used to analyze the radiation pattern of airborne antenna and to optimize the airborne antenna disposition.
计算结果可为天线安装后辐射性能预测和最优化配置提供理论依据。
The idea of plasma channel antenna (PCA) for high power microwave weapon is presented in this paper. The radiation pattern of PCA is calculated.
提出了一种用于高功率微波武器的等离子体通道天线(PCA)，计算了该天线的辐射方向图。
The radiation pattern could be distorted seriously in wide band, thus how to keep the radiation pattern stable is a challenge in UWB antenna design.
由于天线方向图在宽带内的畸变通常比较大，因此保持辐射方向图的稳定性也是超宽带天线设计的一个难点。
On this basis, the plasma antenna arrays of four elements, six elements and eight elements are designed to realize the dynamic reconfigurability of the radiation pattern.
在此基础上设计了四阵元、六阵元和八阵元的等离子体天线阵列，以实现方向图的动态可重构特性。
On this basis, the plasma antenna arrays of four elements, six elements and eight elements are designed to realize the dynamic reconfigurability of the radiation pattern.
在此基础上设计了四阵元、六阵元和八阵元的等离子体天线阵列，以实现方向图的动态可重构特性。
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