Title :
A flicker-noise-free DC-offset-free harmonic mixer in a CMOS process
Author :
Zhang, Zhaofeng ; Lau, Jack
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
A harmonic mixer for direct-conversion receivers is proposed and fabricated in a CMOS process. It is immune from both the flicker noise and self-mixing induced DC offset. Using the lateral bipolar transistor and the harmonic mixing technique, it achieves a +15 dB gain, 17.8 dB NF at 10 kHz frequency, -8.2 dBm IIP3, +44 dBm IIP2 and more than 30 dB DC offset suppression. It consumes 2.2 mW power at 3 V
Keywords :
CMOS integrated circuits; bipolar transistors; flicker noise; harmonics; mixers (circuits); radio receivers; 10 kHz; 15 dB; 17.8 dB; 2.2 mW; 3 V; CMOS process; DC offset suppression; DC-offset-free harmonic mixer; direct-conversion receivers; flicker-noise-free harmonic mixer; gain; lateral bipolar transistor; power consumption; self-mixing induced DC offset; 1f noise; Bipolar transistors; CMOS process; CMOS technology; Circuit noise; Frequency; Low-frequency noise; Noise cancellation; Phase noise; Semiconductor device noise;
Conference_Titel :
Radio and Wireless Conference, 2001. RAWCON 2001. IEEE
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-7189-5
DOI :
10.1109/RAWCON.2001.947548
