默认远场图向上(北)再次而不是向下。
Default far-field plot upwards (north) again instead of downwards.
应用天线理论中的电流分布法，首次推导了具有连续位相结构的反射式毫米波衍射天线的远场衍射图计算公式。
The far field diffractive pattern calculating formula for diffraction antenna with continuous phase structure is derived by current distribution method in antenna theory for the first time.
利用此方法可以依据天线平面近场测试数据快速简便地求得天线远场方向图及其它特性，其精度较高；
The far field patterns and performances of antenna under measurement can be obtained rapidly and efficiently by this method compared to some conventional methods, the precision is good enough.
阐述了用聚焦法在菲涅尔区测试相控阵天线的理论依据及实现方法，用实验结果对近远场方向图进行了比较。
There are many methods to measure the pattern of phased array antenna, such as the technique of plane scanning in near field, focusing method in Fresnel zone, general method in far field, etc.
根据复射线理论，利用复源点高斯波束场来模拟天线的远场方向图。
Based on complex ray theory, the Gaussian beams emitted by complex source points are employed to simulate the far-field pattern of antennas.
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.
本文首先从理论上推导了由近场变换到远场的公式，并用MATLAB编写由近场测量数据推导远场方向图的程序。
In this paper the transformed formula from near-field to far-field is derived, and this process is realized with MATLAB.
本文首先从理论上推导了由近场变换到远场的公式，并用MATLAB编写由近场测量数据推导远场方向图的程序。
In this paper the transformed formula from near-field to far-field is derived, and this process is realized with MATLAB.
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