Sunshield film transparent to radio frequency energy and shielded articles
US5916668A · kind A · utility
2Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A structure protected by a sunshield film includes an article, for example a spacecraft radio-frequency antenna, and a sunshield film protecting the article surface. The sunshield film is formed as a sheet substrate made of a material that is transparent to radio frequency energy, a white coating on one side of the sheet substrate, and a black coating on the other side of the sheet substrate. The white coating and the black coating each have a surface resistivity of from about 10.sup.8 to about 10.sup.9 ohms per square.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.