← 返回 JSSC 论文列表JSSC 2019第8期RF & Wireless28nm
A Broadband CMOS RF Front End for Direct Sampling Satellite Receivers
比较两种新型RF可编程增益放大器架构在宽带CMOS RF前端中的应用。
28nm CMOS, 50mW功耗, 0.32mm²面积, 增益范围42dB, 0.25dB步进
RF可编程增益放大器宽带CMOS直接采样接收器电压模式电流模式
▸电压模式RFPGA-V的多开关多放大器配置
▸电流模式RFPGA-I的电流导向方法
▸无需片外电感器的有源反馈拓扑
Abstract
This paper presents a comparative analysis between
two new architectures for RF programmable-gain amplifiers
(RFPGAs): voltage-mode RFPGA-Vand current-mode RFPGA-I.
RFPGA-V utilizes multiple-switch-multiple-amplifier configura-
tion and gain interpolation method to achieve a fine gain step
of 0.25-dB over 42-dB gain range for the band of 250 MHz
to 2.3 GHz. Meanwhile, RFPGA-I uses a current steering
approach to achieve a fine gain step of 0.25-dB over 42-dB
gain range for an even wider band of 250 MH