Balanced amplifying device having a bypass branch

Details Balanced amplifying device having a bypass branch Balanced amplifying device having a bypass branch

2011-01-18

2011-01-18

Nguyen, Hieu P (Department: 2817)

Amplifiers

With plural amplifier channels

Redundant amplifier circuits

C330S051000

Reexamination Certificate

active

07872526

ABSTRACT:
A balanced amplifier includes a bypass branch (19), termination elements (TE1, TE2) and an amplifying section (10). The section (10) includes amplifiers (A1, A2), first coupling/splitting unit (14) having a first input signal receiving port (14a), a second port (14b) connected to a termination element (TE1), a third port (14c) connected to a first amplifier (A1), and a fourth port (14d) connected to a second amplifier (A2). The section (10) also includes second coupling/splitting unit (16) having a first port (16a) connected to first amplifier (A1), a second port (16b) connected to second amplifier (A2) and a third port (16c) connected to a termination element (TE2). The second coupling/splitting unit (16) combines signals from amplifiers (A1, A2) as output signals on a fourth port (16d) for supply to a signal output (O). The branch (18) is connected to the second port (14b) of the first coupling/splitting unit (14) and provides bypass signals to output (O).

REFERENCES:
patent: 6362685 (2002-03-01), Vagher
patent: 6710650 (2004-03-01), Beaudin et al.
patent: 6806768 (2004-10-01), Klaren et al.
patent: 6864743 (2005-03-01), Pozdeev
patent: 2004/0056710 (2004-03-01), Pozdeev
patent: 0463231 (1992-01-01), None
patent: 03/038995 (2003-05-01), None

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