Facility for combining and amplifying two broadband signals

Details Facility for combining and amplifying two broadband signals Facility for combining and amplifying two broadband signals

1998-10-27

2000-06-06

Pascal, Robert

Amplifiers

With plural amplifier channels

Amplifying different frequencies in different channels

330124R, 370297, 333126, 455116, H03F 368

Patent

active

060723637

ABSTRACT:
A facility (VOR) is disclosed for combining and amplifying two broadband signals which are received from different transmission networks (NET1, NET2) and are transmitted in transmission channels separated in frequency. The facility (VOR) contains a broadband amplifier (BV), a preamplifier (VV), and a frequency filter unit (FW). The preamplifier (VV) and the frequency filter unit (FW) condition the signals to be amplified and establish an optimized signal-to-noise ratio between the two combined broadband signals: The preamplifier adapts the level of one of the signals to the level of the other signal, e.g., to the same value, whereby a linear and increased amplification is achieved in the broadband amplifier, and the filtering of the signals in the frequency filter unit prevents interfering signals, e.g., noise, contained in said one signal from getting into the frequency band occupied by the other signal and vice versa when the two signals are combined.

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