Title:
HIGH-FREQUENCY AMPLIFICATION CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/244757
Kind Code:
A1
Abstract:
This high-frequency amplification circuit (1) is provided with: an input terminal (110A) and an output terminal (100A); a transmission power amplifier (11L) that amplifies, at an amplification factor equal to or higher than a prescribed level, a high-frequency signal in a first frequency range which is a part of a communication band A; a transmission power amplifier (11H) that amplifies, at an amplification factor equal to or higher than a prescribed level, a high-frequency signal falling in a second frequency range which is a part of the communication band A; switches (21 and 31) that switch, in an exclusive manner, between connection among the input terminal (110A), the transmission power amplifier (11L), and the output terminal (100A) and connection among the input terminal (110A), the transmission power amplifier (11H), and the output terminal (100A); and a transmission filter (41T) that is connected between the output terminal (100A) and the switch (31), and that uses the communication band A as a pass band, wherein the first frequency range includes frequency bands other than the second frequency range, while the second frequency range includes frequency bands other than the first frequency range.
Inventors:
ONO ATSUSHI (JP)
Application Number:
PCT/JP2019/023392
Publication Date:
December 26, 2019
Filing Date:
June 13, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04B1/40; H03F3/24; H04B1/00
Foreign References:
| US20130244722A1 | 2013-09-19 | |||
| US20070042802A1 | 2007-02-22 | |||
| US20160211820A1 | 2016-07-21 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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