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Radiation cooled helix TWT is most commonly used as a power amplifier for satellite communication for being broadband in nature. In general, the radiator is mounted on the Multistage Depressed Collector (MDC) and the objective of the radiator is to dissipate heat to the space environment. In this paper, the author has presented the design of the radiator to dissipate heat up to 140 W. Further, the topology optimization of the radiator for room temperature and space temperature was carried out to keep the maximum radiator temperature below the allowable temperature limits. In addition, an effort has been made to keep the radiator as lightweight as possible. The radiator is simulated in the ANSYS tool and the simulation results are presented in the paper.

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Topology Optimization of the Radiator to Improve Heat Dissipation by Radiation of TWT

  • 会议论文

  • 发表日期：

    2025年

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  • Chirag Mistry,
  • Amitavo Roy Choudhury,
  • Subhradeep Chakraborty,
  • Suneeta Arya,
  • Pawan Pareek,
  • Sanjay Kumar Ghosh

摘要

Radiation cooled helix TWT is most commonly used as a power amplifier for satellite communication for being broadband in nature. In general, the radiator is mounted on the Multistage Depressed Collector (MDC) and the objective of the radiator is to dissipate heat to the space environment. In this paper, the author has presented the design of the radiator to dissipate heat up to 140 W. Further, the topology optimization of the radiator for room temperature and space temperature was carried out to keep the maximum radiator temperature below the allowable temperature limits. In addition, an effort has been made to keep the radiator as lightweight as possible. The radiator is simulated in the ANSYS tool and the simulation results are presented in the paper.