Scholarlink

<p>In the recent years, CubeSat industry has experienced rapid growth, replacing and assisting traditional satellites with advantages in size, cost, and development efficiency. However, several considerations arise from their limited size and performance. One such concern is radiation interference caused by deployable structures. This interference can deteriorate communication performance and may be critical to mission operation. This study analyzes such interference by conducting both software and hardware experiments, Ansys HFSS, and anechoic chamber measurements. Essential modifications were made from the initial design to improve the antenna gain from -4.1 dBi to 3.4 dBi and axial ratio from 2.86 to 1.93. An RF switching algorithm (TOSA) was also developed to enhance communication stability. These results provide effective antenna placement and communication strategies for CubeSats. Future work includes on-orbit verification under various configurations.</p>

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UHF Band Antenna Radiation Analysis and Communication Strategy with Structural Constraints

  • 期刊论文

  • 发表日期：

    2026年5月16日

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  • Dukmin Jang,
  • Youngho Eun,
  • Sang-Young Park

摘要

In the recent years, CubeSat industry has experienced rapid growth, replacing and assisting traditional satellites with advantages in size, cost, and development efficiency. However, several considerations arise from their limited size and performance. One such concern is radiation interference caused by deployable structures. This interference can deteriorate communication performance and may be critical to mission operation. This study analyzes such interference by conducting both software and hardware experiments, Ansys HFSS, and anechoic chamber measurements. Essential modifications were made from the initial design to improve the antenna gain from -4.1 dBi to 3.4 dBi and axial ratio from 2.86 to 1.93. An RF switching algorithm (TOSA) was also developed to enhance communication stability. These results provide effective antenna placement and communication strategies for CubeSats. Future work includes on-orbit verification under various configurations.