Fiber optic true time-delay array antenna feed system
US6337660B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1993 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Sep 17, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2861
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The fiber-optic true time-delay array antenna feed is a device for dynamically generating a plurality of identical electromagnetic radiation (EMR) signals with continuously variable time-delay separations. The EMR signal to be transmitted modulates a continuous-wave optical signal from a laser source which is applied to a plurality of high dispersion single-mode optical fibers acting as synchronized true time-delay modulators forming an array antenna feed system. Each fiber is chosen to have the same nominal time delay but a different net dispersion. Photodetectors convert the optical intensity back into an EMR electrical signal to feed each of the elements of the array antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.