摘要
每束多馈源天线是由多个馈源按照一定的幅度和相位激励关系合成一个波束,该类天线对于馈电网络各通道的幅度相位色散控制要求苛刻。文章针对该类天线正交模馈电方案中相位色散控制难的特点,对其控制措施进行了研究,并给出了逐层配相的解决办法。最后通过仿真分析获得了在K频段2.5GHz范围内各通道的相位色散低于5°的优异性能,从而验证了这些措施对于相位色散控制的有效性。
A beam of multiple feeds per beam antenna is synthetized by a cluster of feeds with a certain value of amplified and phase.And it is very critical for their dispersion control.In view of the difficulty in phase dispersion control,the control measures are studied,and the solutions of phase matching layer by layer is given.At last,the excellent performance of each channel’s phase dispersion within 2.5GHz in K band lower 5degrees is got via simulation analysis.So then the validity of these measures of phase dispersion control is verified.
作者
陈修继
龚琦
成克伟
万继响
CHEN Xiuji;GONG Qi;CHEN Kewei;WAN Jixiang(China Academy of Space Technology(Xi’an),Xi’an 710000,China)
出处
《空间电子技术》
2020年第5期58-62,共5页
Space Electronic Technology
关键词
色散控制
每束多馈源
多波束天线
馈电网络
Dispersion control
Multiple feeds per beam(MFPB)
Multiple beams antennas
Feed networks