Patent ID: 8909186
Filing Date: 2014-12-09
Classification: H04B

Abstract:
1. A receiver comprising: a first amplifier and a second amplifier; a first mixer, a second mixer and a third mixer; a first baseband signal path and a second baseband signal path; and a controller configured to provide a first control signal to a control input of the first mixer, a second control signal to a control input of the second mixer and a third control signal to a control input of the third mixer; wherein a signal output of the first amplifier is coupled to a signal input of the first mixer and a signal input of the second mixer; wherein a signal output of the second amplifier is coupled to a signal input of the third mixer and not to another mixer; wherein a signal output of the first mixer and a signal output of the third mixer are coupled to the first baseband signal path; wherein a signal output of the second mixer, but not the signal output of the third mixer, is coupled to the second baseband signal path; wherein each mixer of the first mixer, the second mixer, and the third mixer comprises a switchable path between the mixer's signal input and the mixer's signal output; wherein each switchable path is switchable between a first state and a second state; wherein the signal input and the signal output of each mixer are electrically coupled together in the first state of the mixer's switchable path and are electrically decoupled from one another in the second state of the mixer's switchable path; and wherein the controller is configured to provide, in a first mode, the first, second, and third control signals such that only mixers are in a mixing mode in which they alternately switch between the first state and the second state of their switchable paths which have their signal inputs coupled to the same signal output of the same amplifier.