18830720. POWER AMPLIFIER (Murata Manufacturing Co., Ltd.)
Contents
POWER AMPLIFIER
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
POWER AMPLIFIER
This abstract first appeared for US patent application 18830720 titled 'POWER AMPLIFIER
Original Abstract Submitted
A power amplifier, which includes a plurality of stages of amplification units each of which includes a common-emitter transistor, includes a first amplification unit including a first transistor configured to amplify an input radio-frequency signal, a second amplification unit including a second transistor configured to amplify an output of the first amplification unit, a voltage detection circuit including at least one impedance element and provided between the first transistor and the second transistor, and a protection circuit configured to reduce, based on an output of the voltage detection circuit, a base bias current applied to at least one of the first transistor and the second transistor.
