Three-dimensional-printed low-sidelobe dual-band dual-polarized antenna array for Ku-bandsatellite communications

Yuqi XIA; Xiuping LI; Genqiang KOU; Wenyu ZHAO; Jie ZHANG; Muhammad ISHFAQ; Zihang QI

doi:10.1631/FITEE.2400709

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Three-dimensional-printed low-sidelobe dual-band dual-polarized antenna array for Ku-bandsatellite communications

Regular Papers | Updated：2025-09-04

- Three-dimensional-printed low-sidelobe dual-band dual-polarized antenna array for Ku-bandsatellite communications
  Enhanced Publication
- 用于Ku波段卫星通信的3D打印低旁瓣双频双极化阵列天线
- Frontiers of Information Technology & Electronic Engineering Vol. 26, Issue 8, Pages: 1501-1508(2025)
- Affiliations：
  
  1.State Key Laboratory of Information Photonics and Optical Communications, Beijing 100876, China
  2.Key Laboratory of Universal Wireless Communications of Ministry of Education, Beijing 100876, China
  3.Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing 100876, China
  4.School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
- Author bio：
  
  ‡ Corresponding author
- Funds：
- DOI：10.1631/FITEE.2400709
  CLC：
- Received：13 August 2024，
  
  Revised：2024-12-22，
  
  Published：2025-08
- Accepted：
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Yuqi XIA, Xiuping LI, Genqiang KOU, et al. Three-dimensional-printed low-sidelobe dual-band dual-polarized antenna array for Ku-bandsatellite communications[J]. Frontiers of information technology & electronic engineering, 2025, 26(8): 1501-1508.
DOI：

Yuqi XIA, Xiuping LI, Genqiang KOU, et al. Three-dimensional-printed low-sidelobe dual-band dual-polarized antenna array for Ku-bandsatellite communications[J]. Frontiers of information technology & electronic engineering, 2025, 26(8): 1501-1508. DOI： 10.1631/FITEE.2400709.

摘要

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TE

420

和准TE

240

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%。

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references

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