Integrated photonics device for continuous phase-controlled active beam steering and forming
US10534110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2018 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Feb 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0003
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An RF transmit signal is modulated onto an optical carrier to form a transmit modulated optical carrier (TMOC). The TMOC is split into N transmit modulated optical subcarriers (TMOS). Each TMOS is respectively processed in one of N transmit optical channels (TOCs). In each TOC, RF antenna beam steering operations are performed by optical tuning the TMOS to selectively control a phase difference between the optical carrier and the optical sideband. A different selected phase difference can be applied in each TOC. The TMOS from each of the N TOCs is then processed to obtain N RF signals for driving an antenna array. In the receive direction, M received RF signals from M antenna elements are modulated respectively onto M optical subcarriers to form M receive modulated optical subcarriers (RMOS). RF antenna beam steering operations are performed by optical tuning the RMOS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.