Title :
A CMOS self-mixing-free front-end for direct conversion applications
Author :
Zhaofeng Zhang ; Tsui, Louis ; Zhiheng Chen ; Lau, Jack
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
A CMOS self-mixing-free RF front-end for direct-conversion receivers is presented, which includes a differential LNA, a ring oscillator, and I/Q double-balanced harmonic mixers and buffers. It operates at 930 MHz, achieves 51 dB gain and 5.8 dB spot noise figure at 100 kHz frequency, and consumes 53 mW power. A 54 dB self-mixing improvement over traditional architecture is obtained. The front-end is entirely self-mixing-free and suitable for direct-conversion applications
Keywords :
CMOS integrated circuits; UHF integrated circuits; radio receivers; 5.8 dB; 51 dB; 53 mW; 930 MHz; CMOS self-mixing-free RF front-end; I/Q double-balanced harmonic mixer; buffer circuit; differential LNA; direct-conversion receiver; ring oscillator; Band pass filters; Baseband; Bit error rate; CMOS technology; Costs; Lifting equipment; Noise figure; Power harmonic filters; Radio frequency; Ring oscillators;
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.2001.922254
