The present invention relates to an amplifier system for satellites, in particular
for radio-frequency amplifier systems incorporating travelling wave tube amplifiers
and used in space repeaters. The amplifier system (1) includes two amplifier
modules (A1, A2) each having an input and an output, a signal
divider (D) having an input, a first output, and a second output, a signal combiner
(C) having a first input, a second input and an output. The first output of the
divider (D) is connected to the input of the first amplifier module (A1)
via a connection length Le1. The second output of the divider (D) is
connected to the input of the second amplifier module (A2) via a connection
length Le2. The output of the first amplifier module (A1)
is connected to the first input of the combiner (C) via a connection length Ls1.
The output of the second amplifier module (A2) is connected to the second
input of the combiner (C) via a connection length Ls2. The connection
length satisfies the equation Le1+Ls1=Le2+Ls2
and the connection length Ls1 is different from the connection length Ls2.