Filter arrangement with compensation of poor electrical ground
US10491185B2 · kind B2 · utility
0Cited by
0References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 2015 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/70
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a filter arrangement comprising a frequency filter (F) that has a bad or non-ideal ground connection (GC1, 2, 3, 4, 5, 6, 7), the defects arising from bad ground are compensated by a capacitance (CC) coupled in parallel to the frequency filter. The value of the capacitance is chosen between 1 and 50 fF. The filter arrangement may be a receiving filter (RF) in a duplexer (DU).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.