Title:
LOW-NOISE AMPLIFIER AND RADIO FREQUENCY CHIP
Document Type and Number:
WIPO Patent Application WO/2024/055759
Kind Code:
A1
Abstract:
A low-noise amplifier (100) and a radio frequency chip. The low-noise amplifier (100) has an adjustable circuit gain and a wide dynamic input range. The low-noise amplifier (100) comprises a radio frequency input end (RFIN), a first inductor (L1), a first-stage cascode amplifier (1), a second-stage cascode amplifier (2), a radio frequency output end (RFOUT), a first-stage source inductance adjustment circuit (3) provided with an inductor, a load switching circuit (4) provided with a load resistor, and a bypass mode circuit (5) provided with a first resistor (R1), wherein the first-stage source inductance adjustment circuit (3) is used for adjusting an inductance value of the inductor, so as to adjust an input radiation coefficient of the low-noise amplifier (100); the load switching circuit (4) is used, in a bridged manner, for adjusting a resistance value of the load resistor, so as to adjust the gain of the low-noise amplifier (100); and the bypass mode circuit (5) is used for controlling a bypass mode.
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Inventors:
SHANG PENGFEI (CN)
GUO JIASHUAI (CN)
GUO JIASHUAI (CN)
Application Number:
PCT/CN2023/109815
Publication Date:
March 21, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
LANSUS TECH INC (CN)
International Classes:
H03F1/26
Foreign References:
| CN115441838A | 2022-12-06 | |||
| CN103259553A | 2013-08-21 | |||
| CN108736835A | 2018-11-02 | |||
| CN110311630A | 2019-10-08 | |||
| JP2020195033A | 2020-12-03 | |||
| KR20100067934A | 2010-06-22 | |||
| KR20210130923A | 2021-11-02 | |||
| US7898325B2 | 2011-03-01 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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