FAST多波束单元布局及正交模耦合器改进设计

于京龙; 刘鸿飞; 甘恒谦; 曹洋

doi:10.16511/j.cnki.qhdxxb.2022.26.025

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清华大学学报（自然科学版） ›› 2022, Vol. 62 ›› Issue (11) : 1803-1808. DOI: 10.16511/j.cnki.qhdxxb.2022.26.025

论文

FAST多波束单元布局及正交模耦合器改进设计

于京龙^1,2, 刘鸿飞^1,2, 甘恒谦¹, 曹洋¹

作者信息 +

Improved multi-beam unit layout and orthomode transducers for FAST

YU Jinglong^1,2, LIU Hongfei^1,2, GAN Hengqian¹, CAO Yang¹

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文章历史 +

摘要

500 m口径球面射电望远镜（five-hundred-meter aperture spherical radio telescope，FAST）作为一个多学科基础研究平台，涵盖丰富的天文学内容。在L波段配置的19波束接收机主要用于大天区巡天和脉冲星搜寻，该接收机在发现新脉冲星和快速射电暴研究方面发挥了重要作用。该文在回顾多波束馈源前端的设计和研制历程的基础上，对多波束馈源系统单元布局及正交模耦合器进行了改进设计，给出了相应的实现方式和测试结果，可为大口径天线馈源系统设计和升级改造提供设计和技术参考。

Abstract

Five-hundred-meter aperture spherical radio telescope (FAST) is a multi-disciplinary basic research platform that is used for a wide range of astronomy research. The L band 19 beam receiver is mainly used for large sky surveys and pulsar searches. The receiver plays an important role in the discovery of new pulsars and the study of fast radio burst (FRB). The design of the multi-beam feed front-end was analyzed to improve the multi-beam feed system layout and the orthogonal mode coupler. This paper describes the improvements and the corresponding test results. These design methods provide design and technical guidelines for the design and upgrading of large aperture antenna feed systems.

导出引用

于京龙, 刘鸿飞, 甘恒谦, 曹洋. FAST多波束单元布局及正交模耦合器改进设计[J]. 清华大学学报（自然科学版）. 2022, 62(11): 1803-1808 https://doi.org/10.16511/j.cnki.qhdxxb.2022.26.025

YU Jinglong, LIU Hongfei, GAN Hengqian, CAO Yang. Improved multi-beam unit layout and orthomode transducers for FAST[J]. Journal of Tsinghua University(Science and Technology). 2022, 62(11): 1803-1808 https://doi.org/10.16511/j.cnki.qhdxxb.2022.26.025

参考文献

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基金

国家重点研发计划资助项目（2018YFE0202900）

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收稿日期	出版日期
2021-12-24	2022-11-15
发布日期
2022-10-19

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