Patent · US Active

Filter combiner

US7623005B2 · kind B2 · utility

24Cited by

5References

13Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Rune Johansson · Upplands Väsby, SE
Daniel Källberg · Bromma, SE

Key dates

Filing date	May 4, 2006
Grant date	Nov 24, 2009
Priority date	—
Expiry date	Sep 16, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH03H2007/013
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The invention presents a filter combiner, in particular for mobile communications applications, adapted to be connected to an antenna (12), comprising a first directional coupler (13), connected to at least one first filter (15, 15a, 15b), to an antenna branch (12a), to at least one second filter (17, 17a, 17b), and to a first signal branch (20), the combiner also comprising a second directional coupler (21), connected to the at least one first filter (15, 15a, 15b), to a second signal branch (25), and to the at least one second filter (17, 17a, 17b). Further, the first directional coupler (13) is adapted to be connected to the first signal branch (20) via at least one third filter (29, 29a, 29b).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.