2025
article
OpenAlex
Xiuping Li, Genqiang Kou, Wenyu Zhao, Jie Zhang et autres
介绍了一种用于Ku波段卫星通信 (SATCOM) 的3D打印双频双极化间隙波导 (GWG) 缝隙阵列天线。 两个堆叠的GWG通过正交槽分别激发腔内的准TE420和准TE240模式。 基于脊间隙波导 (RGW), 提出一种具有大功率分配比的不等分功率分配器。 实现了双极化功率锥形分布馈电网络, 抑制了旁瓣电平 (SLL)。 天线通过直接金属激光烧结 (DMLS)分层打印, 整个天线通过螺钉组装在一起。 测量的阻抗带宽覆盖了Ku波段SATCOM所需的发射频段 (Tx, 从14.0到14.5 GHz) 和接收频段 (Rx, 从12.25到12.75 GHz)。 测量结果显示, 最大增益达到25.6 dBi, 双频段的辐射效率超过72%。
br, cn
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Accès ouvert
2025
article
OpenAlex
Yuhan Huang, Jie Zhang, Xiuping Li, Zihang Qi et autres
A low-profile dual-polarized shared-aperture phased array antenna is proposed for Ku-band satellite communications in this paper. The stacked octagonal patches loaded with Via-rings are proposed as dual-polarized shared-aperture radiation elements, with the characteristics of wide impedance bandwidth, high gain, and weak coupling. …
cn
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2022
article
OpenAlex
Jie Zhang, Xiuping Li, Zihang Qi, Yuhan Huang et autres
A dual-band dual-polarization horn antenna array is proposed for Ku-band satellite communication (SATCOM) in this article. A miniaturized orthomode transducer (OMT) using the mutually perpendicular multistep waveguide transition and coupled transition to transmit TE10 mode and TE01 mode, respectively, is integrated into …
cn
(code pays fourni par la source)