Title:
Ｄｏｈｅｒｔｙパワーアンプ回路
Document Type and Number:
Japanese Patent JP6616499
Kind Code:
B2
Abstract:
A Doherty power amplifier circuit comprises: a power divider (1), a carrier amplifier subcircuit (2), a combiner (3), and a peaking amplifier subcircuit (4), wherein a series resonance circuit (5) is disposed between the carrier amplifier subcircuit (2) and the combiner (3). In this way, reactance that would be introduced during an operating process of a conventional Doherty power amplifier circuit can be neutralized, such that a superior performance of the Doherty power amplifier circuit is ensured, and at the same time, a load-pull effect of the Doherty power amplifier circuit is improved to have a wider bandwidth, thereby realizing a communication device supporting operations in multiple frequency bands and multiple systems at the same time, and effectively lowering manufacturing and operation costs.
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Inventors:
Ai, Bao Chang
Fan, yang
Yang, Simin
Fan, yang
Yang, Simin
Application Number:
JP2018517726A
Publication Date:
December 04, 2019
Filing Date:
September 21, 2016
Export Citation:
Assignee:
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
International Classes:
H03F1/07; H03F1/02; H03F1/42; H03F3/68
Domestic Patent References:
| JP5217182B2 | ||||
| JP2006197556A | ||||
| JP2013183234A | ||||
| JP2002118428A |
Foreign References:
| US20130076446 | ||||
| WO2015133003A1 | ||||
| WO2016203512A1 |
Attorney, Agent or Firm:
Hideno Kono
Nobuo Kono
Nobuo Kono