Title:
HIGH-EFFICIENCY RADIO FREQUENCY POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2023/078056
Kind Code:
A1
Abstract:
A high-efficiency radio frequency power amplifier (100), comprising a first-stage power amplification circuit (11), an inter-stage balun matching network (12), a second-stage power amplification circuit (13) and an output balun matching network (14), which are sequentially connected. The first-stage power amplification circuit (11) is a single-path amplification circuit, the second-stage power amplification circuit (13) is a differential amplification circuit, the inter-stage balun matching network (12) comprises a spiral line balun (T1) and a first capacitor (C1), and the output balun matching network (14) comprises a coupling line balun (T2) and a second capacitor (C2), wherein the first capacitor (C1) is connected to a center tap of the spiral line balun (T1), and the second capacitor (C2) is connected to a center tap of the coupling line balun (T2). The conversion from a single-end mode to a differential mode can be realized by means of an inter-stage balun matching network (12), and the conversion from the differential mode to the signal-end mode can be realized by means of an output balun matching network (14). By means of the method, the efficiency of a radio frequency power amplifier can be improved.
Inventors:
PENG YANJUN (CN)
XUAN KAI (CN)
GUO JIASHUAI (CN)
XUAN KAI (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2022/125271
Publication Date:
May 11, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
LANSUS TECH INC (CN)
International Classes:
H03F1/02; H03F1/56; H03F3/19; H03F3/21; H03F3/45
Foreign References:
| CN216390919U | 2022-04-26 | |||
| CN112448683A | 2021-03-05 | |||
| CN210958284U | 2020-07-07 | |||
| CN102983821A | 2013-03-20 | |||
| US20130281043A1 | 2013-10-24 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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