Surface modification to waveguides
US4414244A · kind A · utility
12Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1982 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Jun 16, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P11/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of treating the interior surfaces of a waveguide to improve power transmission comprising the steps of mechanically polishing to remove surface protrusions; electropolishing to remove embedded particles; ultrasonically cleaning to remove any residue; coating the interior waveguide surfaces with an alkyd resin solution or electrophoretically depositing carbon lamp black suspended in an alkyd resin solution to form a 1.mu. to 5.mu. thick film; vacuum pyrolyzing the film to form a uniform adherent carbon coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.