Directional coupler
US7009467B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/187
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multilayer coupled-lines directional coupler of the quarter wavelength type comprises a first, a second and a third conductive layer, joined by means of dielectric layers. The first conductive layer comprises a first and a second conductive strip, separated, mutually parallel, each in one end connected to a first output and in another end connected to a second output. The second conductive layer comprises a third conductive strip, parallel to the first and the second conductive strip, in one end connected to a third output and in another end connected to a fourth output. The first conductive layer comprises a fourth conductive strip, parallel to and located between the first and the second conductive strip, in one end connected to the third output, and in another end connected to the fourth output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.