Title:
MULTI-BAND POWER AMPLIFICATION CIRCUIT AND RADIO FREQUENCY TRANSCEIVER
Document Type and Number:
WIPO Patent Application WO/2022/160248
Kind Code:
A1
Abstract:
The embodiments of the present application provide a multi-band power amplification circuit and a radio frequency transceiver, which are used to increase VBW on the premise of ensuring linear correction and reducing circuit loss. The multi-band power amplification circuit comprises a first power transistor, a second power transistor, a first matching circuit, a second matching circuit, a third matching circuit, and a combiner. The first power transistor is coupled to a first input terminal of the combiner by means of the first matching circuit. The second power transistor is coupled to a second input terminal of the combiner by means of the second matching circuit. A first terminal of the third matching circuit is coupled to an output terminal of the first power transistor. A second terminal of the third matching circuit is coupled to an output terminal of the second power transistor. The third matching circuit is used to directly connect the output terminal of the first power transistor and the output terminal of the second power transistor.
Inventors:
SUO HAILEI (CN)
YI LIANG (CN)
SUN YIJUN (CN)
SUN JIE (CN)
YI LIANG (CN)
SUN YIJUN (CN)
SUN JIE (CN)
Application Number:
PCT/CN2021/074408
Publication Date:
August 04, 2022
Filing Date:
January 29, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03F1/07; H03F1/06
Domestic Patent References:
| WO2020107390A1 | 2020-06-04 |
Foreign References:
| US20020067211A1 | 2002-06-06 | |||
| US20110025412A1 | 2011-02-03 | |||
| CN105048970A | 2015-11-11 | |||
| CN102137518A | 2011-07-27 | |||
| CN111213319A | 2020-05-29 | |||
| CN111010093A | 2020-04-14 | |||
| US20090102553A1 | 2009-04-23 |
Other References:
See also references of EP 4277125A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
Download PDF: