Title :
Complex low-pass filters
Author :
Kiss, Péter ; Prodanov, Vladimir ; Glas, Jack
Author_Institution :
Dept. of Commun. Circuits Res., Agere Syst., Murray Hill, NJ, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
Quadrature direct conversion (zero-IF) receivers suffer from the imbalance of the I and Q paths. By using a complex low-pass filter topology instead of a conventional pair of real low-pass filters, this imperfection can be reduced. Both analytical and numerical analysis show that the proposed technique is significantly more robust to circuit imperfections than the traditional architecture.
Keywords :
filtering theory; low-pass filters; network synthesis; network topology; radio receivers; radiofrequency filters; I/Q path imbalance; complex low-pass filter topology; quadrature direct-conversion receivers; real low-pass filter pair; robust circuit operation; zero-IF receivers; Band pass filters; Circuit topology; Distortion; Frequency; Hardware; Lifting equipment; Low pass filters; Nonlinear filters; Robustness; Transceivers;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1009893
