Pulsed power amplifier for amplifying RF signals

Details Pulsed power amplifier for amplifying RF signals Pulsed power amplifier for amplifying RF signals

1993-03-08

1996-04-02

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330279, 455126, H03G 330

Patent

active

055044573

ABSTRACT:
This invention relates to a pulsed power amplifier 100 for amplifying radio frequency signals. The pulsed power amplifier comprises control means 124, 126, 102 for generating control signals to control the amplifier output power so as to provide an output power pulse having rising and falling transitional phases, and means 112, 114, 117, 118, 122, 132, 134, 137, 138, 142 for generating a subsidiary pulse signal to be applied to the control means in order to adjust a transitional phase of the output power pulse. The generation of the subsidiary pulse may depend on a measured parameter of a previous output power pulse, such as the time taken for a preceding output power pulse to reach a predetermined output power level. Alternatively, the generation of the subsidiary pulse may depend on a parameter of the present output power pulse. In both cases the generating means can control the magnitude of the subsidiary pulse in response to the parameter.

REFERENCES:
patent: 4412337 (1983-10-01), Bickley et al.
patent: 5101175 (1992-03-01), Vaisanen
patent: 5128629 (1992-07-01), Trinh
patent: 5150075 (1992-09-01), Hietala et al.
patent: 5309115 (1994-05-01), Hashimoto et al.

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