| 講演名 | 2009/10/22 Variableness Coverage Modified Folding Type Helicone Reflector for Efficient satellite TT & C links , |
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| PDFダウンロードページ | PDFダウンロードページへ |
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| 抄録(英) | Helix antennas have been widely applied to satellite TT & C, data communication and GPS receiver systems onboard military, remote sensing and communication purpose satellites. The helix antennas are known to be convenient to control impedance and radiation coverage characteristics with a maximum directivity in satellite z-axis. Waveguide horn is commonly used for radar system that needs ultra-wideband pulse for exploration ground radar and electromagnetic disability measurement etc. It has high efficiency and low reflection characteristics provided by the low-profile shape and suppressed radiation distortion. In this paper, a waveguide horn structure incorporated with helix antenna design is proposed for satellite applications that require ultra-wideband pulse radar and high rate RF data communication link to ground station over wide coverage area. The main design concern is to synthesize variable beam forming pattern based on modified horn-helix combination helicone structure such that multi-mission antenna is implemented applicable for TT & C, earth observation, high data rate transmission. Waveguide horn helps to reduce the overall antenna structure size by introduction fold type reflector connected to the tapered helix antenna. The next generation KOMPSAT satellite currently under development requires high-performance precision attitude control system. We present an initial design of a hybrid horn-helix antenna structure suitable for efficient RF communication module design of multi-purpose satellite systems. |
| キーワード(和) | |
| キーワード(英) | Helix / Waveguide horn / Helicone / Fold type reflector / TT & C / Satellite communication / Satellite attitude control system / Multi-purpose antenna / Wideband antenna / Satellite Tool Kit (STK) |
| 資料番号 | SAT2009-40 |
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| 研究会情報 | |
| 研究会 | SAT |
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| 開催期間 | 2009/10/22(から1日開催) |
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| 講演論文情報詳細 | |
| 申込み研究会 | Satellite Telecommunications (SAT) |
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| 本文の言語 | ENG |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Variableness Coverage Modified Folding Type Helicone Reflector for Efficient satellite TT & C links |
| サブタイトル（和） | |
| キーワード(1)（和/英） | / Helix |
| 第 1 著者 氏名（和/英） | / Sang Min Lee |
| 第 1 著者 所属（和/英） | School of Electronics & Telecommunication Engineering, Korea Aerospace University |
| 発表年月日 | 2009/10/22 |
| 資料番号 | SAT2009-40 |
| 巻番号（vol） | vol.109 |
| 号番号（no） | 254 |
| ページ範囲 | pp.- |
| ページ数 | 8 |
| 発行日 | |