A novel IP3 boosting technique using feedforward distortion cancellation method for 5 GHz CMOS LNA

Author

Min Lin ; Yongming Li ; Hongyi Chen

Author_Institution

Inst. of Microelectron., Tsinghua Univ., Beijing, China

Volume

1

fYear

2003

Abstract

Low noise amplifier (LNA) in many wireless and wireline communication systems must have low noise, sufficient gain and high linearity performance. This paper presents a novel IP3 boosting technique using the Feedforward Distortion Cancellation (FDC) method. Through this technique, the IIP3 of LNA can be boosted from +5dBm, which is reported in most public literature to date, to +21dBm, which is firstly reported here, without any noise and gain degradation. In addition, the noise figure can be reduced by about 0.4 dB and the gain increased by 0.4 dB due to the additional gain path.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; distortion; feedforward; field effect MMIC; integrated circuit noise; 5 GHz; CMOS LNA; IP3 boosting technique; feedforward distortion cancellation method; high linearity performance; low noise amplifier; noise figure reduction; Boosting; Degradation; Interference; Linearity; Low-noise amplifiers; Noise cancellation; Noise figure; Performance gain; Signal design; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2003 IEEE MTT-S International

Conference_Location

Philadelphia, PA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7695-1

Type

conf

DOI

10.1109/MWSYM.2003.1211065

Filename

1211065