Thermal control device for spaceborne microwave antenna in extreme radiation environment

By using a combination of radiation-resistant temperature-equalizing layer, multi-layer thermal insulation components, and high thermal conductivity graphene layer in the spaceborne microwave antenna, the reliability and temperature consistency issues of large-area antennas under extreme radiation environments were solved, achieving improved heat dissipation and radiation resistance.

CN122418293APending Publication Date: 2026-07-17SHANGHAI SATELLITE ENG INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI SATELLITE ENG INST
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively protect spaceborne microwave antennas, especially large-array antennas, under extreme radiation environments, avoiding the coupling effects of single-event effects and high heat flux, which can lead to reliability and lifespan issues.

Method used

By employing a combination design of radiation-resistant temperature equalization layer, multi-layer thermal insulation components, and high thermal conductivity graphene layer, a dual heat transfer path is formed. Combined with high emissivity thermal control coating and thermally conductive filler, a lightweight thermal control device is constructed to improve radiation resistance and temperature consistency.

Benefits of technology

It achieves high heat dissipation performance and radiation resistance of spaceborne microwave antennas under extreme radiation environments, improves system reliability and temperature consistency, and is suitable for lightweight design of large array antennas.

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Abstract

本发明提供了一种适用于极端辐照环境的星载微波天线热控装置,包括天线结构板、天线组件、单机、石墨烯层、高发射率热控涂层、抗辐照热均温层、抗辐照多层隔热组件,所述天线组件设置于天线结构板下方,所述单机设置于天线机构板上方,所述石墨烯层设置于天线结构板上端面与单机下端面之间,所述抗辐照热均温层设置于单机上方,所述高发射率热控涂层设置于单机的侧方周向端面,所述抗辐照多层隔热组件包覆在天线结构板外部,形成包覆空间,所述单机、石墨烯层、高发射率热控涂层、抗辐照热均温层均处于包覆空间内,所述天线结构板下端面及其下方空间暴露于包覆空间外部。
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