RF phase delay lines with variable displacement fluidic dielectric
US7012482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2003 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Nov 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/181
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phase delay line (100). The phase delay line can include an RF transmission line (110) and a fluid channel (109) having a serpentine configuration. The transmission line can be coupled to a solid dielectric substrate material (102), for example a substrate formed from a low temperature co-fired ceramic material. The fluid channel can be coupled to the RF transmission line along at least a portion of a length of the transmission line. A phase delay of the RF transmission line can be selectively varied by adjusting a distribution of the fluidic dielectric (130) present within the fluid channel. Similarly, the phase delay of the RF transmission line also can be maintained constant as an operational frequency of the RF transmission line is varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.