Title :
Low-voltage, Low-power and High-gain Mixer Based on Unbalanced Mixer Cell
Author :
Myoung, No Gil ; Kang, Ho Suk ; Kim, Seok Tae ; Choi, Byoung Gun ; Park, Seong-Su ; Park, Chul Soon
Author_Institution :
Sch. of Eng., Inf. & Commun. Univ., Daejeon
Abstract :
A low-voltage, low-power and high-gain mixer core structure based on the unbalanced mixer cell or square-law mixer cell for 5GHz wireless LAN applications is presented in this paper. To reduce power dissipation, a new single-balanced mixer was proposed which operates under a low supply voltage and with the current reuse technique. The circuit was designed with a 0.18mum CMOS process. The designed down-conversion mixer has a maximum conversion gain of 22dB with LO power of -2.5dBm. However, with small LO power of -10dBm, -15dBm and -20dBm the mixer shows a moderate conversion gain of 14.9dB, 10dB and 5.1dB, and an input P1dB of -14dBm, -9.5dBm and -4.5dBm, and an input IP3 of -4.5dBm, 0dBm and 5dBm, respectively. The designed mixer including a bias circuit consumes 1.2mA under a 1.5V supply voltage. The chip size including pads is 0.77mm times 0.81mm
Keywords :
CMOS analogue integrated circuits; microwave mixers; wireless LAN; 0.18 micron; 0.77 mm; 0.81 mm; 1.2 mA; 1.5 V; 10 dB; 14.9 dB; 22 dB; 5 GHz; 5.1 dB; CMOS process; current reuse technique; down-conversion mixer; high-gain mixer; low-power mixer; low-voltage mixer; single-balanced mixer; square-law mixer; unbalanced mixer cell; wireless LAN application; CMOS analog integrated circuits; CMOS technology; Inductors; Integrated circuit technology; RF signals; Radio frequency; Resistors; Voltage; Wireless LAN; Wireless sensor networks; CMOS; current-reuse technique; down-conversion mixer; low-power; low-voltage;
Conference_Titel :
European Microwave Integrated Circuits Conference, 2006. The 1st
Conference_Location :
Manchester
Print_ISBN :
2-9600551-8-7
DOI :
10.1109/EMICC.2006.282665
