China's Space Program Thread II

SanWenYu

Captain
Registered Member
It is reported that, once fully deployed in orbit, the antenna of Ludi-4 SAR satellite is about the size of a basket ball court. This big antenna is a fabric of super thin molybdenum wires.

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国家航天局近日发布消息,我国成功发射世界首颗高轨合成孔径雷达卫星(SAR)——陆地探测四号01星,大型环形合成孔径雷达天线已成功展开,卫星正式“上岗工作”。
护航卫星飞天,由东华大学纺织学院陈南梁教授团队创新开发的“极细金属单丝网状织物‘微张力’编织技术”,为卫星大型可展开天线“编织”新型超轻反射面材料,服务国家航天事业。
据团队骨干、蒋金华教授介绍,之前应用在北斗等卫星上的星载天线金属网选用的是金属钼丝原料,极细金属钼丝柔软,但强度不够,通常采用并线合股来提高整体强度。为了进一步降低材料重量增加反射面面积,此次团队直接采用极细金属钼单丝进行编织。

团队科研人员与常德纺织机械有限公司合作,摒弃传统网状经编织物编织思维定式,创新研发了“微张力”经编网状织物编织新技术及装备,极大地减轻了新型天线反射面重量,形成的环形大天线展开面积接近一个篮球场地的面积,极大地提高了高轨卫星可展开天线反射面面积和通讯能力。

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by78

General
(Continued from above...)

The first batch of images beamed back by Jilin-1 KF02A.

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Three more images beamed back by Jilin-1 KF02A.

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Taiban

Junior Member
Registered Member
A US CASI Report

Trends That Impact Perceptions of the Chinese Space Program
The People’s Liberation Army’s (PLA’s) intention to allow civilian astronauts and non-state-owned enterprise (SOE) companies to participate in the Chinese Space Station (CSS) are two trends that will probably change the global

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by78

General
High-resolution images of the second Lijian-1/Zhongke-1 launch, which successfully inserted 26 satellites into orbit, setting a new Chinese record for the largest number of satellites launched by a single rocket.

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The third Lijian-1 rocket from CAS Space/Zhongke has finished finally assembly and is currently undergoing factory testing in preparation for launch scheduled for October, 2023.

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