火力与指挥控制2024，Vol.49Issue(9)：110-114,121,6.DOI:10.3969/j.issn.1002-0640.2024.09.016
变间距多孔径天线及其相干合并技术
Variable Interval Multiple Apertures Antenna and Coherent Merging Technology
沈晓卫 1王道平 1常瑞花2
作者信息
- 1. 火箭军工程大学核工程学院,西安 710025
- 2. 武警工程大学控制信息工程学院,西安 710018
- 折叠
摘要
Abstract
In order to reduce the height of antenna system for on-the-move satellite communication,a multiple apertures antenna with variable interval and coherent merging method is proposed.The current spacing between apertures is adjusted based on the principle of no gap and no overlapping among each aperture of antennas.And the performance deterioration problem of the fixed-spacing in vibration range of wide elevation is solved.Then,the majority of spatial phase difference between apertures is compen-sated by fixed delay lines in sub-array level,and the remaining spatial phase difference is compensated by the phase shifters.The compensation method ensures the effective merging of signals in different aper-tures.Simulation results show that variable interval multiple apertures antenna has a better performance more than the fixed spacing antennas(the sidelobe level is below-13 dB and the antenna gain is more than 33 dB over elevation scanning range),and the instantaneous bandwidth of the compensated antenna can meet the needs of communication.关键词
卫星通信系统/多孔径天线/变间距/相干合并Key words
satellite communication systems/multiple apertures antenna/variable spacing/coherent merging分类
信息技术与安全科学引用本文复制引用
沈晓卫,王道平,常瑞花..变间距多孔径天线及其相干合并技术[J].火力与指挥控制,2024,49(9):110-114,121,6.
