Directional coupler
US10637123B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Jul 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/187
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A directional coupler includes: a main line electrically connected between input and output terminals and including a first line, a second line connecting the first line and the input terminal, and a third line connecting the first line and the output terminal; a sub line electrically connected between coupling and isolation terminals and including a fourth line electromagnetically coupled with the first line, a fifth line electromagnetically coupled with the second line, and a sixth line electromagnetically coupled with the third line, the fifth line connecting the fourth line and the coupling terminal, the sixth line connecting the fourth line and the isolation terminal, and a ground conductor, shortest distances between the ground conductor and the first and fourth lines being less than shortest distances between the second, third, fifth, and sixth lines and the ground conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.