Integrated passive filter incorporating inductors and ESD protectors
US7808752B2 · kind B2 · utility
28Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2005 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Jun 5, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H7/09
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for implementing an inductor-capacitor filter in an integrated circuit. Embodiments of the invention implement a 5-pole LC low-pass filter suitable for incorporation in wireless applications necessitating compact layouts. Inductors are formed in an IC as concentric coils on metallization layers, the concentric coils providing a negative coupling coefficient between the inductors. The invention provides programmable frequency response characteristics, enabling the transmission of high-frequency base band information while attenuating carrier RF frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.