Journal of Evolving Space Activities
Online ISSN : 2758-1802
Thermal Control of Array Antenna Transmitters Attached on Space Membrane Structures
Yuki TAKEDAShinji TAKEDAShuhei KOIKEKenichiro SAWADAMasahiro FUJITAYuta TAKAHASHIMotoki MORITANIYunosuke SAITOHaruki HAGIWARAShinya TAMURAKazuki NAGAISora KANAMARUDongwon YOUAtsushi SHIRANEDelburg MITCHAOMasanori MATSUSHITAAhmed Kiyoshi SUGIHARAYuki TAKAOChihiro HATAKEYAMAHiraku SAKAMOTO
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ジャーナル オープンアクセス

2024 年 2 巻 論文ID: 114

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Fifth-generation mobile communication system (5G) array-antenna transmitters attached to space deployable membrane structures were developed by the authors. The array-antenna mission’s main objectives are measuring the transmitters’ communication power and demonstrating the antenna’s non-flatness compensation function by beam-forming technology in Low Earth Orbit. Thermal design of the transmitters is critical for the mission’s success. Thus, this study demonstrates the process of designing Multi-Layer Insulation (MLI) to protect the 5G array-antenna transmitters from the harsh space environment. The design process includes thermal analysis, in-house fabrication of the MLI, and the thermal equilibrium test for correlation. The analysis reveals that the temperature of the radio-frequency integrated circuit in the transmitters can remain within the allowable temperature range by appropriately selecting the beaming period and satellite attitudes.

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