DocumentCode
2886831
Title
Analysis of LO leakage due to LO mismatch in CMOS Gilbert mixer for direct conversion application
Author
Liu, J.J. ; Do, M.A. ; Ma, J.-G. ; Yeo, K.S.
Author_Institution
Centre for Integrated Circuits & Syst., Nanyang Technol. Univ.
Volume
1
fYear
2004
fDate
6-9 Dec. 2004
Firstpage
297
Abstract
The DC offset caused by the LO-RF feedthrough in the mixer of a direct conversion receiver is a serious problem. The LO leakage caused by the LO mismatch in double-balanced CMOS Gilbert mixers is examine and analyzed in four cases, no LO mismatch, LO phase mismatch only, LO amplitude mismatch only and the combination of the two mismatches. The relation between the mismatch and the LO leakage is derived. Simulation results shown are consistent with the analysis
Keywords
CMOS integrated circuits; UHF mixers; radiofrequency oscillators; DC offset; LO amplitude mismatch; LO leakage; LO phase mismatch; LO-RF feedthrough; direct conversion receiver; double-balanced CMOS Gilbert mixers; Analytical models; Application specific integrated circuits; Baseband; CMOS technology; Capacitors; DC generators; Integrated circuit technology; Modulation; Switches; Switching circuits;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Conference_Location
Tainan
Print_ISBN
0-7803-8660-4
Type
conf
DOI
10.1109/APCCAS.2004.1412753
Filename
1412753
Link To Document