Title :
Design of low-voltage active mixer for direct conversion receivers
Author :
Kivekäs, K. ; Pärssinen, A. ; Jussila, J. ; Ryynänen, J. ; Halonen, K.
Author_Institution :
Lab. of Electron. Circuit Design, Helsinki Univ. of Technol., Espoo, Finland
Abstract :
Evolution and design trade-offs of a high performance, low-voltage downconversion mixer for wireless direct conversion receivers (DCR) are studied in this paper. As a first step, a mixer with active loads and adjustable conversion gain is presented. Then a different mixer topology that provides high conversion gain without deteriorating the linearity and noise performance is discussed. Finally, this topology is found to be well suitable for very low-voltage applications and thus its design and voltage scalability is depicted. The presented mixers are designed using a 0.35-μm BiCMOS process and characterized at 2 GHz frequency
Keywords :
BiCMOS integrated circuits; UHF integrated circuits; UHF mixers; low-power electronics; radio receivers; 0.35 micron; 2 GHz; BiCMOS process; RFIC; circuit topology; conversion gain; direct conversion receiver; linearity; low-voltage down-conversion active mixer; noise; voltage scalability; wireless communication; Baseband; CMOS technology; Filtering; Integrated circuit technology; Linearity; Radio frequency; Receivers; Topology; Voltage; Wireless communication;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922253
