High attenuation broadband high speed RF shutter and method of making same
US4922253A · kind A · utility
20Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1989 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Jan 3, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency transmitting shutter operable at low power and high speed for use in the protection of a radar or electronic warfare array comprising a multiplicity of individual conductive beam members interconnected by electrostatic switches formed using high yield, common photolithographic methods is disclosed. Further, a photosensitive embodiment of this device which would allow activation of the shutter wherever the light falls upon the shutter during radar protection, is disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.