← 返回 JSSC 论文列表JSSC 2015第5期RF & Wireless40 nmLNA
A 18 dB NF Blocker-Filtering Noise-Canceling Wideband Receiver With Shared TIA i
一款高性能宽带接收器，采用双路径设计和新型滤波技术，显著提升线性度和噪声性能。
2 GHz频率下1.8 dB NF，50 dB增益，+5 dBm OOB IIP3，36 mW功耗
宽带接收器噪声消除阻塞滤波N-path滤波器双混频器架构
▸使用额外的GM级改善噪声系数
▸采用N-path滤波器抑制阻塞信号
▸基带阻塞滤波技术提升IIP3
Abstract
This paper presents a high-performance two-path
wideband receiver (RX) for 4G LTE applications. The RX uses an
extra GM stage after the LNA to improve the noise figure (NF).
Furthermore, different RF and baseband blocker rejection tech-
niques are proposed to significantly improve the linearity of the
RX. The blockers are first rejected after the LNA stage through
an N-path filter. Then, a novel base-band blocker filtering (BBBF)
technique improves IIP3 by 7 dB. A dual-mixer architecture is
also empl