Title :
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
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;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1211065
