Title:
RADIO FREQUENCY POWER AMPLIFICATION CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/197116
Kind Code:
A1
Abstract:
The present application provides a radio frequency power amplification circuit and a communication device. The radio frequency power amplification circuit comprises a power amplification unit, an input matching circuit, and an output matching circuit; the output end of the input matching circuit is connected to the input end of the power amplification unit; the input matching circuit comprises a first impedance circuit, at least one input control unit, and at least one second impedance circuit; each input control unit is connected to one second impedance circuit; the first impedance circuit and the second impedance circuit are connected in parallel between the input end of the input matching circuit and the output end of the input matching circuit; and each input control unit is used for adjusting an impedance value of a corresponding second impedance circuit according to a working frequency. According to the present application, the impedance value of the corresponding second impedance circuit is adjusted by means of the input control unit according to the working frequency, so that the output power is stable, and thus, the problem of stable output under different working frequencies is solved.
Inventors:
WU CHANGLIN (CN)
LENG PENG (CN)
YU YANFENG (CN)
CUI JIANWEI (CN)
YANG BAOFENG (CN)
ZHU LE (CN)
LENG PENG (CN)
YU YANFENG (CN)
CUI JIANWEI (CN)
YANG BAOFENG (CN)
ZHU LE (CN)
Application Number:
PCT/CN2022/086172
Publication Date:
October 19, 2023
Filing Date:
April 11, 2022
Export Citation:
Assignee:
HYTERA COMM CORP LTD (CN)
International Classes:
H03F1/56; H03F1/02
Domestic Patent References:
| WO2021059161A1 | 2021-04-01 |
Foreign References:
| CN103181086A | 2013-06-26 | |||
| CN111865234A | 2020-10-30 | |||
| CN113114132A | 2021-07-13 | |||
| CN110784185A | 2020-02-11 | |||
| CN104716911A | 2015-06-17 | |||
| CN102355221A | 2012-02-15 | |||
| US20210050821A1 | 2021-02-18 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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