| 講演名 | 2004/10/15 Engineering Verification of the RF Active Equipment for the COMS (Communication, Ocean and Meteorological Satellite) Ka band Communications Transponder(Advanced Technology)(Joint Conference on Satellite Communications 2004(JC-SAT 2004)) , |
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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 |
| 抄録(和) | |
| 抄録(英) | This paper describes the engineering verification of the active RF equipment that consists of the Ka band satellite transponder for the COMS (Communication, Ocean and Meteorological Satellite). The COMS communications transponder receives 30 GHz signals and down-converts to 3 GHz for beam switching and then up-converts to 20 GHz for transmitting to ground. Therefore a 30 GHz LNA, 30/3 GHz Downconverter, 3GHz Switch matrix 3/20 GHz Upconverter and Channel amplifier have been developed for the performance verification. These are designed by using MMIC technology to reduce size and mass, and to secure high stable performances. The LNA shows 2.0 dB noise figure with the compact size of 50 mm × 35 mm × 20 mm. The Downconverter triplicates the 8 GHz from DRVCO type LO for downconverting 30 GHz signal to 3 GHz and the Upconverter doubles the 8 GHz signals for upconverting 3 GHz signals to 20 GHz. Each frequency converter has a redundant chain in one housing. The Switch matrix has 4×4 arrays composed by pin-diode switches and power combiners/dividers. The Channel amplifier has a 32 dB commandable gain control range and 20 dB automatic level control range to use transponders at optimum operating condition. In addition to engineering verification of the RF active equipment, Thermal/Mechanical analysis and the other environmental analysis shall be performed to secure successful development of the flight model equipment. |
| キーワード(和) | |
| キーワード(英) | COMS / Satellite transponder / RF active equipment / Amplifier |
| 資料番号 | SAT2004-149 |
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| 研究会情報 | |
| 研究会 | SAT |
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| 開催期間 | 2004/10/15(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） | Engineering Verification of the RF Active Equipment for the COMS (Communication, Ocean and Meteorological Satellite) Ka band Communications Transponder(Advanced Technology)(Joint Conference on Satellite Communications 2004(JC-SAT 2004)) |
| サブタイトル（和） | |
| キーワード(1)（和/英） | / COMS |
| 第 1 著者 氏名（和/英） | / In bok Yom |
| 第 1 著者 所属（和/英） | Electronics and Telecommunications Research Institute |
| 発表年月日 | 2004/10/15 |
| 資料番号 | SAT2004-149 |
| 巻番号（vol） | vol.104 |
| 号番号（no） | 352 |
| ページ範囲 | pp.- |
| ページ数 | 8 |
| 発行日 | |