Study of Transmission Frequency and Transmission Optics to Minimize Microwave Rocket’s Launch Cost

DOI Open Access
  • TANIGUCHI Tomohei
    Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo
  • TABATA Kuniyoshi
    Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo
  • MANABE Ayuto
    Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo
  • TAMAGAWA Toshiyuki
    Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo
  • KOMURASAKI Kimiya
    Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo
  • KOIZUMI Hiroyuki
    Department of Aeronautics and Astronautics, School of Engineering, The University of Tokyo

Bibliographic Information

Other Title
  • マイクロ波ロケットの打ち上げコストを最小とする伝送周波数及び伝送光学系の検討

Abstract

<p>  Microwave Rocket is being studied as the first stage of a launch vehicle to transport a large amount of space cargo for future space solar power satellite construction. The high-power electron tube, which is indispensable for the launch of Microwave Rocket, is currently capable of oscillating at frequencies from the microwave band to millimeter-wave band. We investigated how the cost of launching Microwave Rocket changes when the transmission frequency is changed. As a result, the optimum frequency for the fixed-focus transmission system was 28 GHz, because the aerodynamic drag loss was dominant when the frequency was too small, while the atmospheric attenuation loss was dominant when the frequency was too large. On the other hand, in the case of the variable-focus transmission system, the optimum frequency was 5.8 GHz, where the atmospheric attenuation loss was the lowest, because the beam spread did not affect the rocket diameter.</p>

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Details 詳細情報について

  • CRID
    1390287761161501824
  • NII Article ID
    130008028535
  • DOI
    10.24662/sspss.6.0_51
  • ISSN
    24321060
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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