System and method for linearizing vacuum electronic amplification

An amplifier system, comprising:

• a vacuum tube amplifier having an input signal terminal, an output signal terminal, and an electron source;
• and
• a control circuit having an input terminal coupled to one of the input signal terminal and the output signal terminal, and for controlling an amount of electrons emitted by the electron source based on one of an input signal to the vacuum tube amplifier and an output signal from the vacuum tube amplifier, wherein the control circuit includes:
• a power detector having an input terminal coupled to one of the input signal terminal and the output signal terminal of the vacuum tube amplifier, and having an output terminal;
• and
• a controller having an input terminal coupled to the output terminal of the power detector and an output terminal coupled to the electron source.

An amplifier system, comprising:

• a vacuum tube amplifier having an input signal terminal, an output signal terminal, and an electron source;
• and
• a control circuit having an input terminal coupled to one of the input signal terminal and the output signal terminal of the vacuum tube amplifier, for controlling a kinetic energy of electrons emitted by the electron source based on one of an input signal to the vacuum tube amplifier and an output signal from the vacuum tube amplifier, and for controlling an amount of electrons emitted by the electron source based on one of the input signal and the output signal, wherein the control circuit includes:
• a power detector having an input terminal coupled to one of the input signal terminal and the output signal terminal of the vacuum tube amplifier, and having an output terminal;
• first controller having an input terminal coupled to the output terminal of the power detector and an output terminal coupled to one of the electron source and an interaction region of the vacuum tube amplifier;
• and
• a second controller having an input terminal coupled to the output terminal of the power detector and an output terminal coupled to the electron source.

An amplifier system, comprising:

• a vacuum tube amplifier having an input signal terminal, an output signal terminal, and an electron source;
• and
• a control circuit having an input terminal coupled to one of the input signal terminal and the output signal terminal, and for controlling a kinetic energy of electrons emitted by the electron source based on one of an input signal to the vacuum tube amplifier and an output signal of the vacuum tube amplifier, wherein the control circuit includes:
• a comparator having a first input terminal coupled to the input signal terminal, a second input terminal coupled to the output signal terminal and an output terminal;
• and
• a controller having an input terminal coupled to the output terminal of the comparator and an output terminal coupled to one of the electron source and an interaction region of the vacuum tube amplifier.