摘要
针对星载相控阵天线阵列应用特点,要求天线低剖面、轻量化、多频工作等需求。为降低不同频段天线占用的空间尺寸,提高单位面上天线阵列的利用率,开展低剖面平面L/X双频共口径阵列天线研究。本文研究了一种基于最大利用空间集成的双频共口径相控阵天线通过单元间再空间的合理布局,实现统一口径双频圆极化覆盖,同时满足相控阵最大扫描角度要求,实现地剖面,双频段,共口径,大角度扫描等特性。实现在1.575 GHz频段以及8.2-8.7 GHz频段内驻波比小于2 dB,轴比小于3 dB,扫描角度大于45°。
In view of the application characteristics of the spaceborne phased array antenna array, low profile, lightweight, multi-frequency operation and other requirements of the antenna are required. In order to reduce the size of the space occupied by the antennas of different frequency bands and improve the utilization of the antenna array on the unit surface, the research on the low-profile planar L/X dual-frequency common-aperture array antenna is carried out. This paper studies a dual-frequency common-aperture phased array antenna based on the maximum utilization of space integration through the rational layout of the re-space between the units, to achieve a unified-aperture dual-frequency circular polarization coverage, while meeting the maximum scanning angle requirements of the phased array. Ground profile, dual frequency band, common aperture, large angle scanning and other characteristics. In the 1.575 GHz frequency band and the 8.2-8.7 GHz frequency band, the standing wave ratio is less than 2 dB, the axial ratio is less than 3 dB, and the scanning angle is greater than 45°.
作者
雷霄楚
许博硕
李文
LEI Xiao-chu;XU Bo-shuo;LI Wen(Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,China)
出处
《无线通信技术》
2022年第2期41-44,50,共5页
Wireless Communication Technology
基金
国家重点研发计划(2018YFB1802100)
国家自然科学基金(62171242,61801252,U1809203,61631012)
广东省重点领域研发计划(2019B010156004)
浙江省省属高校基本科研业务费专项资金(SJLY2020001)。
关键词
双频
共口径
相控阵
圆极化
dual frequency
a total of diameter
phased array
circular polarization
