Title:
DIFFERENTIAL POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2023/040238
Kind Code:
A1
Abstract:
A differential power amplifier, comprising an input matching network (11), a first-stage amplification circuit (12), a first inter-stage matching network (13), a second-stage amplification circuit (14), a second inter-stage matching network (15), a third-stage amplification circuit (16) and an output matching network (17) which are sequentially connected in series, wherein the first-stage amplification circuit (12) and the second-stage amplification circuit (14) are single-ended input and single-ended output circuits; the third-stage amplification circuit (16) is a two-way input and two-way output circuit; the second inter-stage matching network (15) comprises a first transformer (T1), a first capacitor (C1), a second capacitor (C2), a first inductor (L1) and a second inductor (L2); and the output matching network (17) comprises a second transformer (T2). Therefore, the inter-stage matching difficulty can be effectively reduced by means of implementing an inter-stage matching network and an output matching network by using transformers, the input return loss and gain can be effectively optimized, and the output power can be increased.
Inventors:
XIE ZHIYUAN (CN)
ZHAO YUTING (CN)
GUO JIASHUAI (CN)
ZHAO YUTING (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2022/084372
Publication Date:
March 23, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
LANSUS TECH INC (CN)
International Classes:
H03F1/02; H03F1/48; H03F1/56; H03F3/45
Foreign References:
| CN106533374A | 2017-03-22 | |||
| CN111934629A | 2020-11-13 | |||
| CN211063579U | 2020-07-21 | |||
| CN109167575A | 2019-01-08 |
Other References:
See also references of EP 4207591A4
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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