並列タイトル等Development of High Gain Antenna (HGA) for Mercury Magnetospheric Orbiter (MMO)
タイトル(掲載誌)宇宙航空研究開発機構特別資料: 平成16年度総合技術研究本部宇宙領域宇宙科学研究本部合同研究成果報告書:人工衛星系基盤技術 = JAXA Special Publication: FY2004 Report of Joint Research Achievements of the Space Division of Institute of Aerospace Technology and Institute of Space and Astronautical Science: Basic Technologies of Satellite Systems
一般注記The harsh environment near Mercury (0.3 AU form the SUN) imposes 11 solar intensity on MMO HGA. As for HGA of spacecraft, a parabola antenna is common conventionally, but a planar antenna is advantageous in structure at solar flux concentration. Therefore, we adopted the helical array antenna exited by radial-line for HGA system in terms of planar antennas. The dimension of Helical Element was decided by the numerical analysis of the TLM method and the experiment. Furthermore, the electric characteristic test model of 1/2 size in terms of the area was made by using this element. We established adjustment technique of amplitude and phase by the half-size model. Based on the result, we produced 1/1 full-size model. This paper describes the basic characteristic of HGA first, and then the influences of heat-resistant material and structure on electrical characteristics.
資料番号: AA0049054022
レポート番号: JAXA-SP-05-008
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ