Title :
A Low-Noise UWB CMOS Mixer Using Switched Biasing Technique
Author :
Seo, Jeong-Bae ; Park, Kun-Man ; Kim, Jong-Ha ; Park, Jin-Hong ; Lee, Young-Sop ; Ham, Jeong-Hyun ; Yun, Tae-Yeoul
Author_Institution :
Hanyang Univ., Seoul
Abstract :
This paper presents a low-noise UWB CMOS mixer using switched biasing technique in 0.13-mum RF CMOS process. Design of the proposed mixer is based on the conventional Gilbert-type structure and utilizes switched biasing technique for a current source. As a flicker noise of the tail transistor is lowered by using switched biasing, the noise figure of the mixer output translated to baseband is improved as well. Calculated results show a conversion gain of 2 -14.3 dB and a DSB noise figure of 8.43 -14 dB in overall UWB band. In addition, the mixer performs IIP3 of -3 dBm with a power dissipation of 5.57 mW from 1.2-V supply. The size of the chip is 0.72 mm x 0.72 mm.
Keywords :
CMOS integrated circuits; mixers (circuits); radiofrequency integrated circuits; ultra wideband technology; Gilbert-type structure; RF CMOS process; conversion gain; current source; low-noise UWB CMOS mixer; noise figure; power 5.57 mW; power dissipation; size 0.13 mum; switched biasing; voltage 1.2 V; 1f noise; CMOS process; CMOS technology; Hemorrhaging; Noise figure; Radio frequency; Tail; Topology; Transconductance; Voltage-controlled oscillators; CMOS; UWB; mixer; switched biasing; ultra-wideband;
Conference_Titel :
Radio-Frequency Integration Technology, 2007. RFIT 007. IEEE International Workshop on
Conference_Location :
Rasa Sentosa Resort
Print_ISBN :
978-1-4244-1307-2
Electronic_ISBN :
978-1-4244-1308-9
DOI :
10.1109/RFIT.2007.4443915
