Title :
A high gain, wide band (2–10 GHz), and low noise active balun merged folded mixer for the full-band UWB application
Author :
Xiangrong Zhang ; Xiaole Cui ; Bo Wang ; Chung Len Lee
Author_Institution :
Shenzhen Grad. Sch., Key Lab. of Integrated Microsyst., Peking Univ., Shenzhen, China
Abstract :
A high gain, wide band (2-10GHz) but low noise mixer is presented and demonstrated. It uses a Gilbert type folded structure with an active balun as the input trans-conductance stage and a PMOS switch stage. Because of the structure, each stage can be separately set its bias current to achieve high gain and low noise. The implemented circuit in the 0.18 um CMOS technology exhibits a high conversion gain (CG), 17.6 dB at 4 GHz and 8.1 dB at 10 GHz, a SSB noise figure (NF) of 15.6 dB, an IIP3 of -3.4 dBm to +2 dBm, and an isolation of RF-LO of -144 dB. The mixer power consumption is about 7.8 mW under a 1.8 V power supply.
Keywords :
CMOS integrated circuits; baluns; low noise amplifiers; microwave amplifiers; microwave integrated circuits; microwave mixers; ultra wideband communication; CMOS technology; Gilbert type folded structure; PMOS switch stage; SSB noise figure; active balun merged folded mixer; frequency 2 GHz to 10 GHz; full-band UWB application; gain -144 dB; gain 15.6 dB; gain 17.6 dB; gain 8.1 dB; high conversion gain; input transconductance stage; low noise mixer; mixer power consumption; size 0.18 mum; voltage 1.8 V; CMOS integrated circuits; Impedance matching; Layout; Mixers; Noise; Noise measurement; Radio frequency; UWB application; active balun; folded Gilbert topology; mixer;
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616790
