间接射线 meaning in English
indirect ray
Examples
- Based on unsymmetrical heat environment , boresight error , boresight error slope and transmission coefficient of a specific shape radome have been calculated with indirect ray method
在不对称热环境的基础上,采用间接射线法计算天线罩瞄准误差、瞄准误差斜率及功率传输系数。 - The radiation patterns at different scan angle from - 20 to 20 degree are presented , and the angle difference between the maximum / minimum field points of their main beam shows the bse of the radome . at different frequencies , the radiation from the antenna has been discussed when azimuth scan angle ranges between - 20 degree and 20 degree . the relationship between
200 ~ 200范围内天线的和方向远区场、方位差方向远区场;得到方位瞄准误差、瞄准误差斜率和功率传输系数随扫描角和入射波频率的变化关系;并将所得数据与文献数据进行比较,表明间接射线法简单、有效且精度较高。 - Indirect ray method contains the following steps : the receiving plane wave field intensities on an adapted closed surface encloseing the antenna is calculated and then the radiation field of the antenna on the same closed surface is obtained from the given antenna . after using lorentz reciprocal theorem , the far field patterns with and without radome are gotten
间接射线法的分析步骤为:从参考面出发的入射平面波(经天线罩)在闭合面sa (在天线罩内且包围天线)上的接收场为et 、 ht ,天线在sa上的发射场为ea 、 ha ,由洛仑兹互易定理可求出天线的远区场。