Miniature quadrature hybrid
US7741929B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2008 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Feb 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/185
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) directional coupler (100) can include a first transmission line element (102) having a first end and a second end, and a second transmission line element (104) having a first end and a second end. The first and second transmission line elements (102, 104) can be disposed in a first plane, where at least a portion of said first and said second transmission line elements (102, 104) are adjacent along a path. The RF coupler (100) can also include a first series of conductive coupling elements (116) disposed along said path in a second plane parallel to the first plane and separated from said first and said second transmission line elements (102, 104) by a first dielectric element (114). The first and second plane can be separated by a pre-determined distance (t2) to increase a capacitive coupling between the first and second transmission line elements (102, 104).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.