Continuously tunable waveguide attenuator
US6985047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Apr 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/222
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A continuously variable waveguide attenuator (100). The continuously variable waveguide attenuator includes at least one waveguide attenuator cavity (109) having at least one barrier. A fluid dielectric (108) having a loss tangent, a permittivity and a permeability is at least partially disposed within the waveguide attenuator cavity (109). At least one composition processor (101 ) is included and adapted for dynamically changing a composition of the fluid dielectric (108) to vary an electrical characteristic of the fluid dielectric. A controller (136) is provided for controlling the composition processor (101 ) to selectively vary the electrical characteristic in response to a waveguide attenuator control signal (137).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.