Title :
Design of high linearity low flicker noise 5.2 GHz down-conversion mixer for direct conversion receiver
Author :
Pokharel, Ramesh K. ; Yano, Y. ; Abdelghany, M.A. ; Kanaya, H. ; Yoshida, K.
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
Abstract :
A design of high linearity (IIP3), low flicker noise (NF), high conversion gain (CG) double-balanced Gilbert-cell mixer (DBGCM) is presented. Since the performance of a direct conversion receiver (DCR) is strongly affected by linearity and flicker noise (1/f) of a mixer in receiving side, a hybrid technique of dynamic current injection (DCI), a tuned inductor in switching pair and direct superposition method are employed to improve the flicker noise corner frequency, conversion gain and IIP3 of a DBGCM without affecting the other parameters. The mixer is designed and implemented on 0.18 μm CMOS technology and a few of the measured results were presented. The proposed mixer has a simulated conversion gain of 14dB, while the IIP3 at +13 dBm, single side band (SSB) noise figure is 8.4dB (@ 100 kHz).
Keywords :
CMOS analogue integrated circuits; field effect MMIC; flicker noise; inductors; microwave mixers; microwave receivers; CMOS technology; direct conversion receiver; direct superposition; double-balanced Gilbert-cell mixer; down-conversion mixer; dynamic current injection; flicker noise; frequency 5.2 GHz; hybrid technique; noise figure 8.4 dB; single side band; size 0.18 mum; switching pair; tuned inductor; 1f noise; CMOS integrated circuits; Linearity; Mixers; Radio frequency; Switches; Transconductance; Down conversion mixer; IIP3; conversion gain; derivative superposition method; flicker noise; high linearity;
Conference_Titel :
Circuits and Systems (APCCAS), 2010 IEEE Asia Pacific Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-7454-7
DOI :
10.1109/APCCAS.2010.5774950
