Integrated duplexer
US9929759B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Feb 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/1063
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first circuit transmitting a first signal to a port, a second circuit receiving a second signal from the port, a first peak-notch filter coupled between the port and the first circuit and configured to pass the first signal and block the second signal, a second peak-notch filter coupled between the port and the second circuit and configured to pass the second signal and block the first signal, and a third filter coupled between an input of the first filter and a ground or between an output of the second filter and the ground. The first signal has a first frequency and the second signal has a second frequency that is different from the first frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.