Apparatus and methods for biasing of low noise amplifiers

Apparatus and methods for biasing of low noise amplifiers (LNAs) are provided herein. In certain embodiments, an LNA includes at least one transistor that amplifies a radio frequency (RF) input signal, and a bias circuit including a current bias circuit that generates a bias current based on a refer...

Full description

Saved in:
Bibliographic Details
Main Authors DEVARAJ, ABHISHEKH, CHOI, YUN-YOUNG, LIU, WEI, BALTEANU, FLORINEL G, THOOMU, KIRAN TEJ, SONG, CHRISTOPHER, NAGARAJAN, SACHIN
Format Patent
LanguageChinese
English
Published 16.06.2023
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
Online AccessGet full text

Cover

More Information
Summary:Apparatus and methods for biasing of low noise amplifiers (LNAs) are provided herein. In certain embodiments, an LNA includes at least one transistor that amplifies a radio frequency (RF) input signal, and a bias circuit including a current bias circuit that generates a bias current based on a reference current and a voltage bias circuit that generates at least one input bias voltage for the at least one transistor based on the bias current. The current bias circuit includes a first bias transistor that receives the reference current, a second bias transistor that generates the bias current, and an amplifier that controls a first bias voltage of the first bias transistor to match a second bias voltage of the second bias transistor.
Bibliography:Application Number: TW202211126877