Title:
RADIO FREQUENCY POWER AMPLIFIER APPLIED TO 5G-SUB6G FREQUENCY BAND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/061089
Kind Code:
A1
Abstract:
Disclosed in embodiments of the present invention is a radio frequency power amplifier applied to a 5G-Sub6G frequency band communication system, comprising a first-stage matching network, a first transistor Q1, a second-stage matching network, a second transistor Q2, a third-stage matching network, a third transistor Q3 and an output matching network which are sequentially connected in series. An input signal RFin is sequentially amplified by the first transistor Q1, the second transistor Q2 and the third transistor Q3 and then is output by the output matching network, wherein the first-stage matching network comprises a resonance unit, and the resonance unit comprises a first capacitor C1, a first resistor R1, and a first inductor L1. One end of the first capacitor C1 is connected in parallel to a base of the first transistor Q1, a connection node is used for inputting the input signal RFin, the other end of the first capacitor C1 is connected to one end of the first inductor L1, the other end of the first inductor L1 is grounded, and the first resistor R1 is connected in parallel to two ends of the first inductor L1, such that the gain flatness can be improved.
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Inventors:
XIE ZHIYUAN (CN)
ZHAO YUTING (CN)
GUO JIASHUAI (CN)
ZHAO YUTING (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2022/116417
Publication Date:
April 20, 2023
Filing Date:
September 01, 2022
Export Citation:
Assignee:
LANSUS TECH INC (CN)
International Classes:
H03F3/21
Foreign References:
| CN114142818A | 2022-03-04 | |||
| CN107994876A | 2018-05-04 | |||
| US5942946A | 1999-08-24 | |||
| CN1866729A | 2006-11-22 | |||
| CN109951163A | 2019-06-28 | |||
| CN208078831U | 2018-11-09 | |||
| KR20170135401A | 2017-12-08 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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