Increasing RF power output in photonics-fed phased array antenna systems
US10523331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2018 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jan 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0096
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Delivering a radio frequency (RF) signal to a remote phased array antenna system involves using an optical modulator at an RF source location to modulate a high power optical carrier signal with a source RF signal SRF so as to produce a high power transmit modulated optical carrier (TMOC) signal. An optical link communicates the high power TMOC signal to a remote antenna location, where the high power TMOC is split into N optical paths to obtain N reduced power TMOC signals. In each of the N optical paths, photodetection operations are performed upon the reduced power TMOC signal to obtain N reduced power S′RF signals which are then constructively combined to obtain a high power S′RF signal which is communicated to at least one antenna element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.