JAXA：开发用于展开反射镜的金属网：小型SAR（合成孔径装载机）
-使用新材料，降低成本-
JAXA，
太阳能丝网
NGK，
技术求解器
5个公司的Koyo Materica
1月26日，它宣布已共同开发出一种金属网，用于安装在人造卫星上的可展开反射器。
下一代卫星通信：
为了提高通信速度，“必不可少的能够应对高频的大型后向反射器”。
常规金属网：
常规的金属网使用金和钼。
瓶颈在于材料昂贵且难以获得。
对此，五家公司共同进行了新金属网的开发。
这种金属网：
它是由锆铜制成的金属丝，并通过挠性的经编针织制成。
强度高，重量轻
在高速通信ka频段（30 GHz频段）中，
具有良好的反射特性。
使用锆和铜的新材料制造，这些材料容易获得且便宜。
与传统产品相比，可显着降低成本。
小型SAR（合成孔径装载机）：
下一代通信卫星和
小型SAR（合成孔径装载机）卫星等
预期将其用于商业卫星。
Taiyo Wire Mesh和其他3家公司：
将用于商业卫星的相同金属网商业化。
计划促进销售。
（钢铁报纸）-雅虎新闻
https://news.yahoo.co.jp/articles/bc0f7b0115772266d94774be95ca429ea71a2bff
JAXA | develop a metal mesh for onboard deployable reflectors
January 26, 2021 (JST)
Taiyo Wire Cloth Co., Ltd
NGK Insulators, Ltd.
Technosolver Corporation
Koyo Materica Corporation
JAXA
have jointly developed a metal mesh for onboard deployable reflectors that has achieved a dramatic cut in costs.
faster communications speeds
In order to realize faster communications speeds, next generation communications satellites need to be able to work with high frequency band, which necessitates large deployable reflectors.
Conventionally, the metal mesh of the antennas have been made from gold plated Molybdenum wire,
which is a mixed metal of precious metal and rare metal and therefore difficult to obtain and very costly.
To cut costs, the five organizations have jointly developed a new metal mesh.
The new metal mesh
is made from Zirconium Copper wire and fabricated by tricot weaving.
It is light weight, flexible, and has excellent electrical reflection properties at the high frequency band of Ka (30 GHz).
Zirconium Copper wire
has characteristics similar to Molybdenum wire and is applicable to metal mesh.
On top of this, Zirconium Copper wire is strong enough to be fabricated into a metal mesh without gold plating.
These two reasons
make it possible to dramatically cut cost compared with conventional metal mesh.
The new metal mesh
is expected to be applied primarily to next generation communications satellites and SAR (synthetic apature radar) satellites, both of which use deployable reflectors to improve satellite capabilities.
Taiyo Wire Cloth Co., Ltd, and three other corporations
are planning to make the new metal mesh available on the market for commercial satellites.
https://global.jaxa.jp/press/2021/01/20210126-1_e.html
共同开发用于卫星固定式后向反射器的金属网