RF filter circuit, RF filter with improved attenuation and duplexer with improved isolation
US9577302B2 · kind B2 · utility
0Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2015 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/725
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A filter circuit providing improved attenuation, a filter having improved attenuation and a duplexer with improved isolation are provided. The filter circuit has a first and a second coupling conductor segment which couple an input port to a ground port or the filter's output port. The filter circuit can be realized in the filter. The duplexer can comprise the filter, especially as its transmission filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.