Power amplifier

Details Power amplifier Power amplifier

H - Electricity

03

F

H03F 1/30 (2006.01) H03G 3/20 (2006.01) H03G 3/30 (2006.01)

Patent

CA 2085117

An amplifier which contains two amplifier stages. Each amplifier stage (433,435) utilizes a diode (407) to attenuate the RF input signal (401) and to stabilize the bias current over temperature. The two amplifier stages (433, 435) are cascaded together. The control voltage inputs are serially coupled through a transistor (423). The transistor (423) shifts the voltage of the control signal (425) down, thereby, shifting the control characteristics and AM characteristics of the first amplifier stage (435) relative to the second amplifier stage (433).

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