Multibeam radio frequency photonic beamformer using a multi-signal slow light time delay unit
US9838125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A photonic beamformer is disclosed andh is configured to transmit or receive a plurality of RF input signals from a plurality of antennas. The beamformer receiver includes a plurality of optical modulators, each optical modulator being configured to modulate each of the RF input signals onto an optical carrier, each carrier having a different wavelength. The beamformer receiver also includes a plurality of optical amplifiers, each optical amplifier being configured to vary the optical power of one optical carrier based on a weighting input and generate a weighted optical carrier. The beamformer receiver also includes a plurality of multi-beam optical true-time delays (TTD), each TTD being configured to receive all of the weighted optical carriers and generate a plurality time delayed optical carriers. The beamformer receiver also includes a plurality of detectors configured to detect each of the plurality time delayed optical carriers and generate an electrical signal that represents each of the plurality of received RF input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.