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本文在文献〔1〕思路基础上,推导了旋转曲面形圆顶天线的固定延迟相位和馈电平面形相控阵天线的相位计算公式。应用同样的分析方法,推导了介质型圆顶天线的外形曲线方程和馈电阵口径相位计算方程。一、固定延迟相位计算公式的推导在以下公式的推导中,基本原理见文献〔1〕,设无源透镜是由任意曲线r(θ)绕Z轴旋转而成的曲面,天线元则假定连续地排列在曲面上。我们要求透镜在θ角方向有放大扫描角的作用,在方位方向则作对称扫描。如图1所示,由图示的几何关系可
Based on the idea of literature [1], this paper derives the formulas for calculating the phase of the fixed phase of the rotating curved dome antenna and the phase of the feeding planar phased array antenna. Using the same analysis method, the shape curve equation of dielectric dome antenna and the calculation equation of the aperture of feed array are deduced. I. Derivation of the formula for calculating the fixed delay phase In the derivation of the following formula, the basic principle is given in [1]. Let the passive lens be a surface formed by rotating an arbitrary curve r (θ) around the Z axis. The antenna element is assumed to be continuous Arranged on the surface. We ask that the lens have the function of magnifying the scan angle in the direction of theta angle and the symmetric scan in the azimuth direction. As shown in Figure 1, the geometrical relationships shown can be