Title :
Analysis and design of an integrated quadrature mixer with improved noise, gain and image rejection
Author :
Harvey, Jackson ; Harjani, Ramesh
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., MN, USA
Abstract :
The analysis of a quadrature mixer based on the CMOS double-balanced mixer is presented. The noise, image rejection, conversion gain, and linearity of the quadrature mixer are compared to that of a Gilbert mixer under square wave and sinusoidal LO drive. It is shown that the quadrature mixer exhibits a 3 dB improvement in noise and conversion gain, and improved image rejection, compared to a pair of Gilbert mixers when the LO signal is a large amplitude sine wave
Keywords :
CMOS analogue integrated circuits; integrated circuit noise; mixers (circuits); CMOS double-balanced mixer; Gilbert mixer; LO signal; conversion gain; design analysis; image rejection; integrated quadrature mixer; linearity; noise; sinusoidal wave; square wave; Image analysis; Image converters; Linearity; Mixers; Noise figure; Noise level; RF signals; Radio frequency; Switches; Voltage;
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.2001.922355
