Directional couplers with DC insulated input and output ports
US11362407B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | May 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P11/001
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A directional coupler may include a first coupled section comprising a first and a second coupled transmission lines, the first coupled transmission line having a first end coupled to an input port. The directional coupler may also include a second coupled section comprising a first and a second coupled transmission lines. The directional coupler may also include a third coupled section comprising a first and a second coupled transmission lines. The first coupled transmission line of the third coupled section has a first end coupled to a second end of the second coupled transmission line of the second coupled section and a second end coupled to an output port. The directional coupler may further include a delay section. A total electrical length of the first coupled section, the second coupled section, the third coupled section, and the delay section is about 90 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.