Patent Number: 7,133,657

Title: Channel calibrator for use with a quadrature mixing receiver and a method of operation thereof

Abstract: The present invention is directed to a channel calibrator and a method of calibrating in-phase and quadrature phase channels for use with a quadrature mixing receiver. In one embodiment, the channel calibrator includes a balancer and an equalizer. The balancer reduces frequency dependent imbalance between an in-phase channel and a quadrature phase channel associated with the receiver. The equalizer decreases frequency independent mismatch between the in-phase channel and the quadrature phase channel.

Inventors: Kuenen; Jeroen C. (Enschede, NL), Tao; Xiao-Jiao (Losser, NL)

Assignee: Agere Systems Inc.

International Classification: H04B 1/30 (20060101)

Expiration Date: 2019-11-07 0:00:00