Transmitter amplifier
AssigneeLicentia Patent-Verwaltungs-G.m.b.H.
InventorsWilly Minner, Jorn Muller
Life of this patent
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Abstract
A transmitter amplifier comprises a transistor forming a class B or C amplifier element and output and input circuits for the amplifier element connected by a low-pass filter with a limiting frequency below the intended frequency band of the amplifier.
Claims8
A transmitter amplifier comprising a transistor forming a class B or C amplifier element, an output circuit for said transistor, an input circuit for said transistor and a low-pass filter connecting said output circuit and said input circuit and having a limiting frequency below the intended frequency band of the amplifier.
In a transmitter amplifier including a transistor forming a class B or C amplifier element for amplifying signals over a predetermined frequency range, the transistor having an input terminal and an output terminal and the amplifier further including an output circuit connected to the output terminal of the transistor and an input circuit connected to the input terminal of the transistor, the improvement comprising a low-pass filter connected between said output circuit and said input circuit and having a limiting frequency below the predetermined frequency range of the amplifier, said filter serving to prevent the excitation of parasitic oscillations in said amplifier.
Dependencies are inferred from the claim text.