VHF-UHF broadband amplifier and signal processing device incorporating such, especially for television signals

摘要

1. Wide band amplifier circuit for electrical signals, in particular for VHF-UHF bands, of the type comprising at least : an amplifier arrangement comprising an amplifier stage comprising a transistor (T10 ) which does not have a negative feedback of current in the utilisation band, and an input adaptation system (C20 , C30 ), an output adaptation system (C50 , C40 ), characterised by the fact that it also comprises a voltage negative feedback loop (S10 , R10 ) acting on the amplifier arrangement composed of the amplifier stage comprising a transistor (T10 ) and the input adaptation system (C20 , C30 ).