Communications system using a mirror kept in outer space by electromagnetic radiation pressure
US4253190A · kind A · utility
7Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1979 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Apr 10, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system are described for transmitting electromagnetic radiation by using a communications mirror located between about 100 kilometers and about 200 kilometers above ground. The communications mirror is kept aloft above the atmosphere by the pressure of the electromagnetic radiation which it reflects, and which is beamed at the communications mirror by a suitably constructed transmitting antenna on the ground. The communications mirror will reflect communications, such as radio, radar, or television waves up to about 1,100 kilometers away when the communications mirror is located at a height of about 100 kilometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.