← 返回 JSSC 论文列表JSSC 2012第8期RF & Wireless
A 19 GHz CMOS Power Ampli fier With Embedded Linearizer to Compensate AM-PM Disto
一款1.9GHz CMOS功率放大器，内置线性化器以补偿AM-PM失真，提升ACLR性能。
28.3dBm@1.95GHz, 2.6dB ACLR提升, 2.5-3.6V供电
CMOS功率放大器AM-PM失真补偿预失真线性化器级联偏置电路WCDMA
▸嵌入式预失真线性化器补偿AM-PM失真
▸新型PVT变化容忍级联偏置电路
▸低损耗级间功率分配器设计
Abstract
A series combining tran sformer(SCT)-based,
watt-level 1.9 GHz linear CMOS power ampli fier with an on-chip
linearizer is demonstrated. Proposed compact, predistortion-based
linearizer is embedded in the tw o-stage PA to compensate AM-PM
distortion of the cascode power stages, and improve ACLR of
3GPP WCDMA uplink signal by 2.6 dB at 28.0 dBm output
power. The designed interstage po wer distributor with one tuning
inductor contributes to low-loss power supply for the driver stage
and high common-