Recent advances in the design of efficient-yet-linear watt-class mmWave CMOS PAs

Author

Bhat, Ritesh ; Chakrabarti, Anandaroop ; Krishnaswamy, Harish

Author_Institution

Dept. of Electr. Eng., Columbia Univ., New York, NY, USA

fYear

2014

fDate

15-17 Dec. 2014

Firstpage

53

Lastpage

56

Abstract

Technology scaling, which has enabled operation at mmWave frequencies in CMOS, has also brought with it a steady decrease in the breakdown voltages of the transistors. The resulting fall in output power of power amplifiers (PAs) combined with the low efficiency due to poor device gain and lossy passive components has led to research efforts towards efficient yet linear high output PAs at mmWave. This paper discusses key advances toward this goal, namely device stacking, mmWave switch-mode operation, large-scale power combining and linearization techniques capable of supporting multi-Gbps complex modulations efficiently.

Keywords

CMOS analogue integrated circuits; linearisation techniques; millimetre wave integrated circuits; millimetre wave power amplifiers; complementary metal oxide semiconductor; device stacking; large-scale power combining; linear watt-class mmwave CMOS PA; linearization technique; mmwave switch-mode operation; multiGbps complex modulation; power amplifier; technology scaling; transistor breakdown voltage; CMOS integrated circuits; Modulation; Power generation; Radio frequency; Stacking; Switches; System-on-chip;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and RF Conference (IMaRC), 2014 IEEE International

Conference_Location

Bangalore

Type

conf

DOI

10.1109/IMaRC.2014.7038968

Filename

7038968