Directional coupler and method for manufacturing the same as well as radio transmitter and radio device
US11011819B2 · kind B2 · utility
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0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2017 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Sep 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A directional coupler and a method for manufacturing the same are disclosed. According to an embodiment, the directional coupler comprises a first transmission line configured to receive an input signal. The directional coupler further comprises a second transmission line that can be coupled to the first transmission line by electromagnetic coupling to output a coupled signal. The first transmission line is further configured to act as a quarter-wave impedance transformer. A radio transmitter comprising the directional coupler and a radio device comprising the radio transmitter are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.