Miniature radio frequency directional coupler for cellular applications
US9093734B2 · kind B2 · utility
15Cited by
1References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2014 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/184
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A directional coupler with increased directivity and reduced overall footprint area is disclosed. There is an input port, an output port, a coupled port, and a ballasting port. A primary chain of serially connected inductors is connected to the input port and the output port, while a secondary chain of serially connected inductors is connected to the coupled port and the ballasting port. A first compensation capacitor is connected to the input port and the coupled port, and a second compensation capacitor is connected to the input port and the ballasting port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.