Title :
Gain mismatch-balanced I/Q down-conversion mixer for UWB
Author :
Phan, Tuan-Anh ; Chang-Wan Kim ; Lee, Sang-Gug ; Park, T.-J. ; Kim, E.-J.
Author_Institution :
u-Radio Lab, Inf. & Commun. Univ., Daejon
Abstract :
This paper presents an I/Q down conversion mixer in the receiver of ultra-wide band (UWB) systems with gain mismatch compensation capability by integrating the two PMOS variable gain amplifiers (VGA) at the output. The I/Q mixer is designed in 0.18mum Samsung CMOS technology. The proposed mixer operates at 1.584 GHz with the power conversion gain of 5.9 dB, IIP3 of 4.1 dB and NF of 7.9 dB. By adjusting the gain of VGA, the I and Q outputs perfectly have the same gain. LO-RF leakage is smaller than -72 dB. The designed mixer consumes total 11.5 mA from 1.8 V of supply voltage
Keywords :
CMOS integrated circuits; UHF amplifiers; UHF mixers; microwave receivers; ultra wideband communication; 0.18 micron; 1.584 GHz; 1.8 V; 11.5 mA; 5.9 dB; 7.9 dB; I/Q mixer; PMOS variable gain amplifiers; Samsung CMOS technology; down-conversion mixer; gain mismatch compensation; ultra wideband receivers; CMOS technology; Degradation; Frequency conversion; Gain; Image converters; Mixers; Signal generators; Signal to noise ratio; Transceivers; Transconductance;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693751
