The Review of Beamforming Technology Based on Optical True Time Delay Line

Shiyi XIA; Guotong LI

doi:10.11959/j.issn.2096-8930.2022017

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The Review of Beamforming Technology Based on Optical True Time Delay Line

Special Issue: Satellite Internet Space Payload | 更新时间：2024-06-03

- The Review of Beamforming Technology Based on Optical True Time Delay Line
- Space-Integrated-Ground Information Networks Vol. 3, Issue 2, Pages: 20-27(2022)
- 作者机构：
  
  1. 中国科学院微小卫星创新研究院，上海 201203
  2. 中国科学院大学，北京 100049
  3. 上海科技大学，上海 201210
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-8930.2022017
  CLC： TP393
- Published Online：2022-06，
  
  Published：20 June 2022
- 稿件说明：
移动端阅览
Shiyi XIA, Guotong LI. The Review of Beamforming Technology Based on Optical True Time Delay Line[J]. Space-integrated-ground information networks, 2022, 3(2): 20-27.
DOI：

Shiyi XIA, Guotong LI. The Review of Beamforming Technology Based on Optical True Time Delay Line[J]. Space-integrated-ground information networks, 2022, 3(2): 20-27. DOI： 10.11959/j.issn.2096-8930.2022017.

摘要

卫星通信在下一代通信协议中扮演了一个重要的角色，这给研究者带来了机遇与挑战。为有效、灵活地利用卫星载荷资源，波束成形是必不可少的技术。为探寻更优的波束成形技术，首先对比光实时延迟线所组成的光控波束成形与传统模拟波束原理。基于光实时延迟线的相控阵波束成形技术在满足卫星通信中体积小、重量轻、功率低需求的同时还可轻易实现在波束扫描的过程中无斜视。然后分析不同技术路径下光实时延迟线的波束成形技术的优势与约束，如基于微型环谐振腔阵列、基于光栅延迟线、基于多路径切换与光开关和基于波长选择性的光实时延迟线。最后总结光控波束成形技术研究现状，提出在卫星互联网中实现的可能性，并对其未来发展方向进行预测。

Abstract

The important role satellite communications plays in next-generation communication protocols brings both opportunities and challenges.Beamforming is an essential technology for effi cient and fl exible utilization of onboard resources.To explored a better beamforming technology

the optical control beamforming composed of the optical real-time delay line and the traditional analog beam were compared in principle.The phased array beamforming technology based on optical true time delay line meets the expectations of small size

lightweight

and low power in satellite communication.Phased arrays based on optical true delay lines could easily achieved no squint during beam scanning.The technical advantages and constraints of beamforming of optical real-time delay lines under diff erent technical paths were analyzed.For example

based on micro-ring resonator arrays

based on grating delay lines

based on multi-path switching and optical switches

and based on wavelength-selective optical true time delay lines.Finally

the research status of the existing optical beamforming technology was summarized.The possibility of realization in satellite interconnection was proposed

and its future development direction was predicted.

关键词

Keywords

references

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