Invention Grant
- Patent Title: Power amplification module
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Application No.: US15413763Application Date: 2017-01-24
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Publication No.: US10014832B2Publication Date: 2018-07-03
- Inventor: Shigeki Koya
- 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: JP2016-085355 20160421
- Main IPC: H03F3/191
- IPC: H03F3/191 ; H03F1/56 ; H03F1/02 ; H03F3/19 ; H03F3/21 ; H03F1/32 ; H03F3/217 ; H03F3/24

Abstract:
A power amplification module includes: an amplifier that amplifies an input signal and outputs an amplified signal; and a harmonic-termination circuit to which harmonics of the amplified signal are input and the impedance of which is controlled in accordance with the frequency of a harmonic. The power amplification module can operate in a first mode in which a power supply voltage changes in accordance with the average voltage value of the amplified signal over a prescribed time period or in a second mode in which the power supply voltage changes in accordance with the envelope of the input signal. The impedance of the harmonic-termination circuit is controlled such that at least one even-ordered harmonic is short-circuited when the power amplification module operates in the first mode and at least one odd-ordered harmonic of third order or higher is short-circuited when the power amplification module operates in the second mode.
Public/Granted literature
- US20170310287A1 POWER AMPLIFICATION MODULE Public/Granted day:2017-10-26
Information query
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