Low noise amplifier

The invention provides a low noise amplifier, comprising: an amplifier circuit configured to receive a radio frequency input signal and output a radio frequency output signal, and comprising first and second transistors, first and second resistors, and first and second switches, the first transistor...

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Bibliographic Details
Main Authors ZHU BIAOBIAO, HUANG XIN, QIAN YONGXUE, MENG HAO, DUAN LIANCHENG, LI TAI'AN, QI QIAOYUN, LI KAN, ZHENG JINWANG
Format Patent
LanguageChinese
English
Published 16.05.2023
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:The invention provides a low noise amplifier, comprising: an amplifier circuit configured to receive a radio frequency input signal and output a radio frequency output signal, and comprising first and second transistors, first and second resistors, and first and second switches, the first transistor and the second transistor are configured to form a cascode structure, the first resistor and the first switch are configured to be connected in parallel and to provide a first bias voltage to the first transistor, and the second resistor and the second switch are configured to be connected in parallel and to provide a second bias voltage to the second transistor. The amplifier circuit is configured to supply a first bias voltage to the first transistor and supply a second bias voltage to the second transistor, and the switching logic control circuit is configured to supply a control signal to the amplifier circuit so as to turn on the first switch and the second switch according to a starting signal or a gain swit
Bibliography:Application Number: CN202211717973