强激光与粒子束, 2015, 27 (10): 103221, 网络出版: 2015-11-30
X波段极化可重构高功率微波辐射器仿真设计
An X-band high power microwave launcher with polarization reconfigurable capacity
高功率微波 高斯波束 波束波导馈源 圆极化栅网 极化可重构 high power microwave Gaussian beam launcher circular polarization grate polarization reconfiguration
摘要
为了提高高频段高功率微波反射面天线的馈电效率,同时使波束波导馈线更加紧凑,提出一种新型的X波段极化可重构高功率微波辐射器结构。通过波纹喇叭辐射器产生准高斯的HE11模辐射,采用双相位修正镜组成的波束变换系统实现将准高斯波束转换为电场分布更为均匀的平顶波束或其余期望分布的波束,平顶分布的输出波束可使得馈源在相同介质窗尺寸下获得更高的功率容量,同时实现了波束传播方向的90°转弯;此外采用双圆极化栅网的级联组合,实现了对输出波束极化特性的调变。通过全电磁波仿真分析验证了该辐射器的设计思路。
Abstract
A majority of the high power microwave reflector antenna, which works at high frequency band, employ beam waveguide as fed line, the traditional high power beam waveguide is fed by the high power horn, whose volume is much more huge and that the first mirror of the beam waveguide is also large. A novel X-band high power microwave feeder with polarization reconfigurable capacity was proposed and simulated design, two phase-correct mirrors were used to transform high power microwave beam to desired beam, so as to increase power capacity of the window. Two cascaded circular grates were employed to control the polarization of the output beam, and simulation of the feeder was lay out to check the aforementioned design.
徐刚, 李才阳, 张现福, 施美友, 余川, 胡进光. X波段极化可重构高功率微波辐射器仿真设计[J]. 强激光与粒子束, 2015, 27(10): 103221. Xu Gang, Li Caiyang, Zhang Xianfu, Shi Meiyou, Yu Chuan, Hu Jinguang. An X-band high power microwave launcher with polarization reconfigurable capacity[J]. High Power Laser and Particle Beams, 2015, 27(10): 103221.