天线方向图 所谓天线方向图，是指在离天线一定距离处，辐射场的相对场强(归一化模值)随方向变化的图形，通常采用通 过天线最大辐射方向上的两个相互垂直的平面方向图来表示。(radiation patternThe so-called antenna pattern, refers to the distance from the antenna at a certain distance, the radiation field of the relative field strength (normalized mode) with the direction of the change in the pattern, usually through the antenna maximum radiation direction of the two perpendicular to the plane To represent.)