论文部分内容阅读
由电磁场理论给出了线元天线阵列波束扫描的解析公式 ,并由该解析公式得到阵列天线波束扫描的数字结果 ,然后用光栅方程对所得数字结果作了理论分析 ,得到以下结论 :(1)阵列天线扫描问题可以由光栅方程进行简洁分析 ;(2 )波束能量极大值与阵列天线元数目的四次方成正比 ;(3)通过适当馈电时间延迟 ,可以控制波束扫描范围 ;(4 )扫描的角范围依赖所给的半角度宽度要求。
The analytic formula of the beam scanning of the antenna array antenna is given by the electromagnetic field theory. The numerical results of the beam scanning of the array antenna are obtained from the analytical formula. Then the theoretical analysis of the obtained digital result is made with the grating equation. The conclusions are as follows: (1) (2) the maximum beam energy is proportional to the fourth power of the array antenna elements; (3) the beam scanning range can be controlled by the appropriate feed time delay; (4) The angular range of the scan depends on the given half width requirement.