| タイトル | Analysis of a Mars-stationary orbiting microwave power transmission system |
| 本文（外部サイト） | http://hdl.handle.net/2060/19900016856 |
| 著者（英） | Long, Kenwyn J. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1990-07-01 |
| 言語 | eng |
| 内容記述 | To determine the feasibility of providing efficient RF power transmission from a Mars-stationary orbit to the surface of the planet, an assessment was made focussing on RF propagation in the 2.45- to 300-GHz range. The proposed orbiting system configuration provides for power generation by either photovoltaic array or nuclear reactor, the conversion of the dc output to RF, and subsequent propagation of RF energy from the orbiting array to the Martian surface. On the planet, a rectenna array will convert RF to dc power to be distributed for planetary power needs. Total efficiency of the energy conversion chain from dc to RF in orbit through RF to dc on the planetary surface was derived for several representative frequencies in the range of study. Tradeoffs between component efficiency and transmitting antenna requirements were considered for each of these frequencies. Rectenna element power density thresholds and desired received power levels were used to determine receiving antenna criteria. Recommendations are presented for research into developing technologies which may afford enhanced viability of the proposed microwave power transmission system. |
| NASA分類 | ENGINEERING (GENERAL) |
| レポートNO | 90N26172
NASA-TM-101344
E-4367
NAS 1.15:101344 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/137032 |
