Title :
A Gm3 cancellation bias for 60GHz Doherty Power Amplifier
Author :
Aaron Tan;Kaixue Ma;Zhi Hui Kong;Kiat Seng Yeo
Author_Institution :
Virtus Lab, School of EEE, NTU, Singapore
Abstract :
We present a 60GHz CMOS Doherty Power Amplifier (DPA) with a proposed wideband broadside coupler and a phase-shifter to adjust the phase difference between the two paths. The DPA achieves a gain of 8.5dB under a supply voltage of 1.2V, which allows the saturated output power to be about 14.5dBm. A peak PAE of 11% and output compression point of 10.8dBm were exhibited. Comparing to a balance power amplifier, the IMD3 improvement is approximately 9dB. The proposed design achieves the highest Figure of Merit (FoM) as compared to state of the art 60GHz DPA in CMOS process.
Keywords :
"Power amplifiers","CMOS integrated circuits","Power generation","Gain","Yttrium","Microwave amplifiers","Microwave circuits"
Conference_Titel :
SoC Design Conference (ISOCC), 2015 International
DOI :
10.1109/ISOCC.2015.7401785
