Capacitively loaded spurline filter
US8384498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2009 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Jun 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an exemplary embodiment, a spurline filter comprises a capacitive element connected to a spur and either a through-line of the spurline filter or ground. In another embodiment, multiple capacitive elements are connected to the spur. In an exemplary embodiment, the capacitively loaded spurline filter provides a band rejection frequency response similar to the band rejection frequency response of a similar spurline filter that does not comprise at least one capacitive element but the capacitively loaded spurline filter has half the layout area or less. In an exemplary embodiment, the spurline filter comprises capacitive elements, where the capacitive elements are configured to reduce the resonant frequency of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.