Title:
POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2023/061086
Kind Code:
A1
Abstract:
Provided in the present utility model is a power amplifier. The power amplifier comprises an input matching network circuit, an amplification circuit module and an output matching network circuit, which are connected in sequence. An amplification stage circuit comprises a driving stage amplification circuit and an output stage amplification circuit, which are connected in sequence. A bias circuit comprises a positive temperature coefficient circuit and a negative temperature coefficient circuit, wherein the positive temperature coefficient circuit is used for generating a first bias voltage that has a positive temperature coefficient and outputting the first bias voltage to the driving stage amplification circuit, so that a gain of the driving stage amplification circuit increases along with temperature rise; the first bias voltage increases along with the temperature rise; the negative temperature coefficient circuit is used for generating a second bias voltage that has a negative temperature coefficient and outputting the second bias voltage to the output stage amplification circuit, so that a gain of the output stage amplification circuit decreases along with the temperature rise; and the second bias voltage decreases along with the temperature rise. The amplitude of a gain of a power amplifier of the present utility model changing along with temperature is small.
Inventors:
HU BIN (CN)
GUO JIASHUAI (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2022/116399
Publication Date:
April 20, 2023
Filing Date:
September 01, 2022
Export Citation:
Assignee:
LANSUS TECH INC (CN)
International Classes:
H03F1/30
Domestic Patent References:
| WO2021169250A1 | 2021-09-02 |
Foreign References:
| CN216390921U | 2022-04-26 | |||
| US20180262163A1 | 2018-09-13 | |||
| US20180262166A1 | 2018-09-13 | |||
| CN101656511A | 2010-02-24 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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