← 返回 JSSC 论文列表JSSC 2008第11期RF & Wireless0.18μm
A Linearization Technique for RF Receiver Front-End Using Second-Order-Intermodu
提出一种利用低频二阶互调抑制三阶互调的射频前端线性化技术。
0.18μm CMOS, 1.5V, 13.1mA, 22dB增益, 5.3dB噪声系数, IIP3提升10.2dB
高线性度互调抑制线性化技术低功耗射频前端
▸利用低频二阶互调信号注入抑制三阶互调
▸技术同时应用于LNA和下变频混频器
▸在几乎不增加功耗的情况下显著提升线性度
Abstract
ng , Senior Member , IEEE
Abstract—A linearization technique is proposed in which
low-frequency second-order-intermodulation /40/73/77/50/41is generated
and injected to suppress the third-order intermodulation /40/73/77/51/41.
The proposed linearization technique is applied to both a low-noise
amplifier (LNA) and a down-conversion mixer in an RF receiver
front-end (RFE) working at 900 MHz. Fabricated in a 0.18
m
CMOS process and operated at 1.5 V supply with a total current
of 13.1 mA, the RFE de