Title:
AMPLIFICATION CIRCUIT, RADIO-FREQUENCY RECEIVER, COMMUNICATION MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/019557
Kind Code:
A1
Abstract:
The present application relates to the field of communications, and discloses an amplification circuit, a radio-frequency receiver, a communication module, and an electronic device, for use in improving the linearity of the amplification circuit. The amplification circuit comprises a first amplification branch, a second amplification branch, and a first floating current mirror; the first amplification branch comprises a first voltage node that is used for sampling current of the first amplification branch to obtain a first voltage; the first floating current mirror is coupled to the first voltage node, and converts the first voltage to obtain a second voltage; the second amplification branch comprises a second voltage node, and receives the second voltage by means of the second voltage node; the second voltage is used for controlling current of the second amplification branch; and the first amplification branch and the second amplification branch are coupled to an output end of the amplification circuit.
Inventors:
GU CHENGJIE (CN)
Application Number:
PCT/CN2021/113800
Publication Date:
February 23, 2023
Filing Date:
August 20, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03F1/32; H03F1/26
Foreign References:
| CN111740705A | 2020-10-02 | |||
| CN102983815A | 2013-03-20 | |||
| TW202107838A | 2021-02-16 | |||
| CN112532187A | 2021-03-19 | |||
| CN104113293A | 2014-10-22 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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