Amplifiers – With amplifier bypass means
Patent
1976-07-26
1977-09-13
Rolinec, Rudolph V.
Amplifiers
With amplifier bypass means
330 53, 330149, H03F 100
Patent
active
040485790
ABSTRACT:
A feed-forward amplifier with an input arranged to receive wide-band signals and an output to supply a linearly amplified version of these has two parallel signal paths arranged between such input and output, one of the signal paths includes a cascade connection of a signal amplifier and a delay network and the second signal path includes an error amplifier, an error extraction circuit having a directional coupler in which an input side has a first pair of conjugate first and second ports and is connected partly to the input of the feed-forward amplifier and partly to an output of the signal amplifier and an output side has a second pair of conjugate third and fourth ports, the fourth port being connected to an input of the error amplifier, and an error injection circuit which has a first and a second input connected to an output of the delay network and to an output of the error amplifier, respectively and an output connected to the output of the feed-forward amplifier, the error extraction circuit having the third port of the directional coupler connected to an input of the signal amplifier and a summation circuit having a first and second input connected to the input of the feed-forward amplifier and to the output of the signal amplifier, respectively, and an output connected to the second port of the directional coupler.
REFERENCES:
patent: 3541467 (1970-11-01), Seidel
patent: 3624532 (1971-11-01), Seidel
patent: 3815040 (1974-06-01), Seidel
Dahl Lawrence J.
Rolinec Rudolph V.
Telefonaktiebolaget L M Ericsson
LandOfFree
Feed-forward amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Feed-forward amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feed-forward amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-277102