Miniaturized passive low pass filter
US9154104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2010 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Feb 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2001/0078
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low pass filter circuit (100) structure is provided. The low pass filter circuit structure includes first and second dominant inductor (114, 116)s, a first capacitor (120) and first and second shunt capacitors (122, 124). The first dominant inductor has a first end and a second end and the second dominant inductor has a first end and a second end. The second end of the first dominant inductor is electrically connected to the second end of the second dominant inductor. The first capacitor is electrically coupled between the first end of the first dominant inductor and the first end of the second dominant inductor. The first shunt capacitor is electrically coupled between the first end of the first dominant inductor and a ground potential, and the second shunt capacitor is electrically coupled between the first end of the second dominant inductor and the group potential. The first dominant inductor and the second dominant inductor are further coupled by one or both of magnetic coupling and parasitic mutual capacitive coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.