Filter circuit
US8125299B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Aug 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A filter for use in a coaxial cable network includes a printed circuit board having first and second opposed major surfaces, and first and second opposing sides. The opposed major surfaces are substantially parallel to a single plane, and are bisected by a longitudinal axis. The first and second opposing sides are substantially parallel to the longitudinal axis. The filter further includes an input terminal and an output terminal connected to the printed circuit board. The input terminal and the output terminal have an axis extending substantially parallel to the longitudinal axis. A signal path is disposed on the printed circuit board and extends from the input terminal toward the output terminal. The filter further includes a plurality of resonator elements fabricated upon the first opposed major surface. In one embodiment, the inductor elements are arranged in series along the signal path defining a footprint of less than 540 square millimeters. The filter passes a first range of frequencies in a provider bandwidth and attenuates a second range of frequencies in a personal data network bandwidth. In one embodiment, the resonator elements are parallel inductor elements and capaci…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.