Optical beamforming
US10270555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A beamforming device for a phased array antenna, comprising: a laser light source (2) arranged to provide an optical spectrum comprising a plurality of spaced wavelengths, and a distribution unit (4) configured to distribute one or more of the plurality of spaced wavelengths onto a plurality of optical paths (6). A wavelength selection device (8) configured to receive the plurality of spaced wavelengths on each of the plurality of optical paths. One or more phase shift unit (12) connected to a said wavelength selection device, wherein the phase shift unit is configured to introduce a phase shift to a received wavelength. The wavelength selection device on each optical path is configured to selectively transmit a wavelength to the phase shift unit. The wavelength selection device is configured to receive the said phase shifted wavelength from the phase shift unit (12). The beamforming device further comprising a heterodyning device (16) configured to generate a signal for transmission by an element of the phased array antenna, wherein the heterodyning device is configured to heterodyne a plurality of selected spectral components of the spaced wavelengths of the laser light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.