Title :
A dual-band image-reject mixer for GPS with 64 dB image rejection
Author :
Haruoka, Masah ; Utsurogi, Yoshihiro ; Matsuoka, T. ; Taniguchi, Kenji
Author_Institution :
Dept. of Electron. & Inf. Syst., Osaka Univ., Japan
Abstract :
The dual-band image-reject mixer is designed for a GPS L1/L2 dual-band receiver, an extension of the conventional weaver architecture (Wu, S. and Razavi B., ISSCC Digest, p.124-5, 1998). The paper presents a quadrature mixer with phase error compensation capability in the quadrature LO signal -without calibration - and tuning. The measurement of the dual-band image-rejection mixer demonstrated 64 dB image rejection ratio (IMRR).
Keywords :
CMOS integrated circuits; Global Positioning System; integrated circuit design; interference suppression; mixers (circuits); radio receivers; 0.25 micron; 0.6 mm; 2.5 V; 4 mA; CMOS technology; GPS; calibration; dual-band image rejection mixer; dual-band receiver; quadrature mixer; quadrature mixer with phase error compensation; tuning; weaver architecture; CMOS technology; Calibration; Dual band; Electronic mail; Error compensation; Frequency; Global Positioning System; Information systems; Mixers; Very large scale integration;
Conference_Titel :
Wireless Communication Technology, 2003. IEEE Topical Conference on
Print_ISBN :
0-7803-8196-3
DOI :
10.1109/WCT.2003.1321472
