An 84GHz DAT-based power amplifier with 18dBm P sat utilizing an ultra-symmetric dual-differential power divider

IEICE Electronics Express

article

Linhong Li¹  Shuai Cheng¹  Zhaofeng Zhang¹ 

[1] Dept. of Shanghai Advanced Research Institute, Chinese Academy of Sciences;University of Chinese Academy of Sciences

关键词: power amplifiers;    power divider;    millimetre wave;    CPW;   

DOI  :  10.1587/elex.19.20220236

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

An ultra-symmetric dual-differential power divider based on the low loss CPW and transformer for the distributed active transformer (DAT) based power amplifiers (PA) has been introduced in this Letter. Two millimeter-wave PAs with different power dividers are compared. Experimental results show that the PA2 with the proposed power divider achieves 18dBm saturated output power (Psat) at 84GHz, which exceeds that of the PA1 with the typical dual-differential power divider by 1.35dB. The power gain and power-added efficiency (PAE) of PA2 are 24.4dB and 12.63%, respectively. The PA2 occupies a die area of 0.48mm.

【 授权许可】

CC BY