A broadband dual-mode reconfigurable driver amplifier for wireless communication

被引：0

作者：

Li, Junjie ^{[1
]}

Zhang, Youming ^{[1
,2
]}

Cao, Yunqi ^{[1
]}

Wei, Zhennan ^{[1
]}

Li, Zhengyang ^{[1
]}

Chu, Xinyi ^{[1
]}

Huang, Fengyi ^{[1
,2
]}

机构：

[1] Southeast Univ, Nanjing 210096, Peoples R China

[2] Purple Mt Labs, Nanjing 210096, Peoples R China

来源：

IEICE ELECTRONICS EXPRESS | 2024年 / 21卷 / 16期

关键词：

key driver amplifier (DA); broadband; dual-mode reconfigurable; reconfigurable output network; POLAR POWER-AMPLIFIER; TRANSFORMER; EFFICIENCY;

D O I：

10.1587/elex.21.20240366

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter introduces a fully integrated broadband dual-mode reconfigurable driver amplifier (DA). DA can operate in analog DA mode (ADA-mode) and digital DA mode (DDA-mode) to meet different requirements for linearity and efficiency in various scenarios. A broadband reconfigurable output network enables the DA to operate from 2-4.5 GHz providing impedance matching, power combining and harmonic rejection. The DA offers a maximum gain of 12 dB with a 5-bit digital-control gain step in 1.6 V supply. Measurement results demonstrate that the DA achieves an OP1dB of 8.5 dBm with a drain efficiency of 13.1% in ADA-mode. In DDA-mode, the DA achieves a maximum output power of 10 dBm with a drain efficiency of 30.8%. The gain error of proposed DA is less than 0.3 dB. The DA is fabricated in 40 nm CMOS process, and the active area is 0.16 mm 2 .

引用

页数：5

共 34 条

[1]

Bhat R, 2017, ISSCC DIG TECH PAP I, P234, DOI 10.1109/ISSCC.2017.7870347

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