Title :
The effect of I/Q imbalance and complex filter component mismatch in low-IF receivers
Author :
Mahattanakul, Jirayuth
Author_Institution :
Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
In this paper, the effect of mismatch in the front-end section of the low intermediate-frequency (IF) receiver is investigated. In particular, the I/Q imbalance in quadrature mixing and component mismatch in complex filtering are concurrently taken into consideration. It is shown that the signal to interference ratio of the low-IF receiver cannot be generally improved by increasing the order of complex filter.
Keywords :
CMOS analogue integrated circuits; filters; mixers (circuits); radio receivers; CMOS analog integrated circuits; I/Q imbalance; complex filter component mismatch; intermediate-frequency receiver; low-IF receivers; quadrature mixing; Analog integrated circuits; Circuit topology; Crosstalk; Energy consumption; Filtering; Filters; Interference; Mirrors; Radio frequency; Robustness; CMOS analog integrated circuits; complex filters; low-intermediate-frequency (IF) receivers; quadrature mixer;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2005.857545
