Relating to antennas
US9762325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/801
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical signal transmission apparatus (1) for a rotating antenna comprising a plurality of optical modulators (6) arranged for receiving a respective plurality of analog RF signals (5) and for modulating a respective plurality of optical signals therewith to produce a plurality of modulated analog optical signals (8). A plurality of opto-electrical converters (14) each converts a respective modulated analog optical signal (13) into an analog electrical signal. The plurality of optical modulators (6) are rotationally coupled in optical communication with the plurality of opto-electrical converters (14) via an optical rotary joint (10) including a reversion prism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.