Microwave frequency selective surface having fibrous ceramic body
US4743919A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1986 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Oct 7, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/0013
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A frequency selective surface having a fibrous ceramic material body and a metallic grid on a reflecting face thereof. The body is formed by bonding a mass of silicon dioxide fibers together at their intersection points, as with a fusing agent such as boron nitride in a sintering process, resulting in an array of fibers with cellular porosity intentionally distributed through the body to reduce its density. Other types of ceramic fibers can be used either alone or in combination with the silicon dioxide fibers. The grid is attached to the reflecting surface or deposited thereon. The frequency selective surface finds particular utility in satellite microwave communications satellites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.