Title:
POWER AMPLIFICATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/027146
Kind Code:
A1
Abstract:
This power amplification circuit comprises: a first amplifier that is operable by power supplied through a first supply line, and that amplifies a first transmission signal in a first frequency band; a second amplifier that is operable by power supplied through a second supply line connected to the first supply line, and that amplifies a second transmission signal in a second frequency band that is different from the first frequency band; a third amplifier that amplifies a reception signal in the second frequency band received from an antenna shared with the second amplifier; and a harmonic suppression circuit that generates, on the basis of the harmonics of the first transmission signal, a suppression signal for suppressing the harmonics transmitted to the first supply line, and that outputs the suppression signal to the first supply line or the second supply line.
Inventors:
TAKEZONO NAOFUMI (JP)
YOSHIMI SHUNJI (JP)
YOSHIMI SHUNJI (JP)
Application Number:
PCT/JP2022/032045
Publication Date:
March 02, 2023
Filing Date:
August 25, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03F3/24; H03F1/32; H03F3/68; H04B1/04; H04B1/40
Foreign References:
| JP2009290897A | 2009-12-10 | |||
| JP2003504934A | 2003-02-04 | |||
| JP2005151411A | 2005-06-09 | |||
| JPS5385140A | 1978-07-27 | |||
| JP2011055078A | 2011-03-17 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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