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An active, ultra-wideband dual-polarized tightly coupled dipole subarray for satellite communication
International Journal of RF and Microwave Computer-Aided Engineering ( IF 1.7 ) Pub Date : 2021-08-01 , DOI: 10.1002/mmce.22849
Haotian Li 1 , Yikai Chen 1 , Tianyu Wang 1 , Shiwen Yang 1
Affiliation  

How to integrate the tightly coupled dipole array (TCDA) with tile-based power combination network (PCN) has never been discussed in literatures. However, it is a critical issue should be resolved for TCDA's compact design. This article investigates a crucial front-end component—8 × 8 dual-polarized tightly coupled dipole subarray (TCDSA)—for ultra-wideband satellite communication (SATCOM). A tile-based network architecture is proposed to realize a low-volume active PCN for the TCDSA. Then, a vertical interconnection module is proposed to totally eliminate coaxial cables between antenna elements and the PCN. A prototype of the TCDSA is developed. The PCN is elaborately integrated with the antenna elements in a compact space within a total thickness of 2.0 cm. The overall height of the prototype is 206.6 mm (2.07λH), where λH is the wavelength at the high-end operating frequency. The fabricated dual-polarized prototype demonstrates a decade bandwidth of 0.3–3.0 GHz with low cross-polarization levels (<−30.0 dB). Because of the compact structure and excellent performance, the developed TCDSA will find applications in future receiving systems for SATCOM.

中文翻译:

一种用于卫星通信的有源超宽带双极化紧耦合偶极子阵列

文献中从未讨论过如何将紧耦合偶极子阵列 (TCDA) 与基于瓦片的功率组合网络 (PCN) 集成在一起。然而,这是TCDA紧凑设计需要解决的关键问题。本文研究了用于超宽带卫星通信 (SATCOM) 的关键前端组件——8 × 8 双极化紧耦合偶极子阵列 (TCDSA)。提出了一种基于图块的网络架构来实现 TCDSA 的低容量主动 PCN。然后,提出了一种垂直互连模块,以完全消除天线元件和 PCN 之间的同轴电缆。开发了 TCDSA 的原型。PCN与天线元件精心集成在一个紧凑的空间内,总厚度为2.0厘米。原型的总高度为 206.6 mm (2.07 λH ),其中λ H是高端工作频率下的波长。制造的双极化原型展示了 0.3–3.0 GHz 的十倍频带宽和低交叉极化水平 (<-30.0 dB)。由于结构紧凑、性能优良,开发的TCDSA将在未来卫星通信接收系统中得到应用。
更新日期:2021-10-01
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