Optically controlled phase shifter and phased array antenna for use therewith
US5694498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Aug 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4207
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for optically controlled phase shifters are described. An apparatus includes a proximal rib waveguide; a phase shifter connected to the proximal rib waveguide, the phase shifter including: a first plasma induced modulator connected to the proximal rib waveguide, the first plasma induced modulator having a first transmission coefficient a and including: a first branch waveguide connected to the proximal rib waveguide; and a first photosensitive semiconductive plasma injector connected to the first branch waveguide; a second plasma induced modulator connected to the proximal rib waveguide, the second plasma induced modulator having a second transmission coefficient b and including: a second branch waveguide connected to the proximal rib waveguide; and a second photosensitive semiconductive plasma injector connected to the second branch waveguide; and a third plasma induced modulator connected to the proximal rib waveguide, the third plasma induced modulator having a third transmission coefficient c and including: a third branch waveguide connected to the proximal rib waveguide; and a third photosensitive semiconductive plasma injector connected to the third branch…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.