Title :
A 1.2-V low LO-power 3–5 GHz broadband CMOS folded-switching mixer for UWB receiver
Author :
Wang, H.-Y. ; Wei, K.-F. ; Lin, J.-S. ; Chuang, H.-R.
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan
fDate :
June 17 2008-April 17 2008
Abstract :
A 1.2-V broadband down-conversion mixer for ultra-wideband (UWB) system applications is presented. The mixer is fabricated in the 0.18-mum 1P6M standard CMOS process. To achieve a low DC power consumption for UWB applications, the LC folded-switching approach is utilized to reduce the supply voltage and the DC power consumption. A CMOS inverter with current-reuse technique is used in the transconductance stage. The shunt-peaking technology is used to achieve wideband frequency response. From 3-5 GHz, the fabricated mixer exhibits a maximum conversion gain of 8.7 dB, maximum IIP3 of -0.65 dBm, LO-RF isolation of about 30 dB, and a dc power consumption of 8.4 mW at 1.2 V power supply.
Keywords :
CMOS integrated circuits; invertors; microwave mixers; radio receivers; ultra wideband communication; CMOS inverter; DC power consumption; LC folded-switching approach; UWB receiver; broadband CMOS folded-switching mixer; broadband down-conversion mixer; frequency 3 GHz to 5 GHz; shunt-peaking technology; transconductance stage; ultra-wideband system; voltage 1.2 V; CMOS process; CMOS technology; Energy consumption; Frequency response; Inverters; Isolation technology; Mixers; Transconductance; Ultra wideband technology; Voltage; CMOS; UWB; broadband; folded; mixer;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1808-4
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2008.4561514
