A Novel Linearization Method of CMOS Drive Amplifier Using IMD Canceller

Author

Kim, Do-Gyun ; Hong, Nam Pyo ; Choi, Young-Wan

Author_Institution

Lab. of Optoelectron. & Circuit Syst., Chung-Ang Univ., Seoul, South Korea

Volume

19

Issue

10

fYear

2009

Firstpage

671

Lastpage

673

Abstract

A novel linearization method for CMOS drive amplifier using intermodulation distortion (IMD) canceller is presented. The IMD cancellation method is composed of a cascode main amplifier and a common-source IMD canceller. The additional common-source amplifier generates IMD3 signals with 180deg phase difference against the IMD3 of the cascode main amplifier. The linear drive amplifier is designed and fabricated by CMOS 0.18 mum process. The output IP₃ of +13 dBm is achieved with the power gain of +11.6 dB, the output P_{1 dB} of + 5.5 dBm, and the power-added efficiency of 21%.

Keywords

CMOS integrated circuits; amplifiers; intermodulation distortion; CMOS drive amplifier; cascode main amplifier; common-source IMD canceller; common-source amplifier; efficiency 21 percent; gain 11.6 dB; intermodulation distortion canceller; linearization method; size 0.18 mum; Cascode amplifier; common source amplifier; complementary metal oxide semiconductor (CMOS); drive amplifier (DA); intermodulation distortion (IMD) cancellation; linearization;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2009.2029759

Filename

5232822