Device for creating optical delays and application to an optical control system for a scanning antenna
US5430454A · kind A · utility
22Cited by
1References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/2676
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Device for creating optical delays in which several secondary optical paths are provided and placed in series and in shunt with a main optical path. Access to the secondary optical paths is obtained via switches that are placed along the main optical path. The length of the delay circuits are in a geometric progression whose common ratio has the value of two. Depending upon the switching states of the switches it is therefore possible to obtain a series of equal distant delays with a relatively small number of switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.