Title :
Design of a high linearity mixer for direct-conversion base-station receiver
Author :
Tikka, Tero ; Ryynänen, Jussi ; Hotti, Mikko ; Halonen, Kari
Author_Institution :
Electron. Circuit Design Lab., Helsinki Univ. of Technol.
Abstract :
The design of a high linearity current-mode mixer, which is targeted for base-station (BS) direct-conversion receiver, is described in this paper. Several different configurations based on the Gilbert cell mixer are compared to achieve a high input referred third-order interception point (IIP3) performance with a low noise figure (NF). According to the simulations the designed mixer achieves +15-dBm IIP3 and 10-dB NF. The mixer draws 7 mA from a 2.5-V supply and has been fabricated with a 0.25-mum SiGe BiCMOS process
Keywords :
BiCMOS analogue integrated circuits; Ge-Si alloys; current-mode circuits; mixers (circuits); radio receivers; 0.25 micron; 10 dB; 2.5 V; 7 mA; BiCMOS process; Gilbert cell mixer; SiGe; base-station receiver; current-mode mixer; direct-conversion receiver; high linearity mixer; noise figure; third-order interception point; BiCMOS integrated circuits; Design optimization; Electronic circuits; Laboratories; Linearity; Modems; Noise measurement; Radio frequency; Resistors; Topology;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693086
