Title :
A 1.9 GHz CMOS RF down-conversion mixer
Author :
Kilicasian, H. ; Kim, Hong-Sun ; Ismail, Mohammed
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
A 1.9 GHz down-conversion mixer is presented using 0.5 μm CMOS technology. The mixer is based on the Gilbert cell. A common-gate input stage is used rather than common-source input stage in order to adjust the input impedance easily. The mixer has on-chip matching networks including built-in spiral inductors. MIM capacitors are used to increase the selectivity of the matching networks, and to decrease noise. The mixer shows 3.35 dB conversion gain and 9.04 dB noise figure. The mixer is simulated with a 2.5 V supply voltage.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF mixers; impedance matching; radio receivers; 0.5 micron; 1.9 GHz; 2.5 V; 3.5 dB; 9.04 dB; CMOS RF down-conversion mixer; Gilbert cell; MIM capacitors; built-in spiral inductors; common-gate input stage; input impedance; onchip matching network; CMOS technology; Gain; Impedance; Inductors; MIM capacitors; Network-on-a-chip; Noise figure; Radio frequency; Spirals; Voltage;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662287
