Invention Grant
- Patent Title: Power amplifier circuit
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Application No.: US17099297Application Date: 2020-11-16
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Publication No.: US11552601B2Publication Date: 2023-01-10
- Inventor: Shingo Yanagihara , Satoshi Tanaka
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Pearne & Gordon LLP
- Priority: JPJP2019-209365 20191120
- Main IPC: H03F3/21
- IPC: H03F3/21 ; H03F1/02 ; H03F1/56

Abstract:
A power amplifier circuit includes an input-stage power amplifier configured to receive a radio-frequency input signal, an output-stage power amplifier configured to output an amplified radio-frequency output signal, and an intermediate-stage power amplifier disposed between the input-stage power amplifier and the output-stage power amplifier. The intermediate-stage power amplifier includes a first transistor, a second transistor, and a capacitor having a first end connected to an emitter of the first transistor and a second end connected to a collector of the second transistor. The intermediate-stage power amplifier receives a signal at a base of the second transistor thereof and outputs an amplified signal from a collector of the first transistor thereof.
Public/Granted literature
- US20210152139A1 POWER AMPLIFIER CIRCUIT Public/Granted day:2021-05-20
Information query
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