Modular frequency division filter
US7126440B2 · kind B2 · utility
16Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2004 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Jan 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is a modular frequency division filter having an antenna port that connects to two or three transmission paths. Each transmission path includes either a band pass filter or a duplexer to separate the received signal by frequency. Frequency phase shifters or shunt inductors may be included to further enhance the frequency separation. Following frequency separation, the separated signal is transceived by a device operating at the respective separated frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.