| タイトル | Proposed Solar Probe telecommunications system concept |
| 著者（英） | Kapoor, V.; Devereaux, A.; Vacchione, J.; Crist, R.; Kellogg, K. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1992-01-01 |
| 言語 | eng |
| 内容記述 | A proposed telecommunications system concept for NASA's Solar Probe mission is described. Key system requirements include 70 kbps data rate at perihelion and operation at X-band (uplink/downlink) and Ka-band (downlink). A design control table is presented to demonstrate design compliance with telecommunication needs. The Ka-band feed is to be a hexagonal array of 37 active elements, each containing 1/4W HEMT amplifiers. The array is located at the Cassegrain point of a 0.75-m reflector. When compared to the TWTA-based system, the Ka-band active array feed provides advantages of reduced mass, increased dc power efficiency, enhanced reliability, graceful degradation, and reduced volume requirements. |
| NASA分類 | SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING |
| レポートNO | 92A29628
AIAA PAPER 92-0863 |
| 権利 | Copyright |
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