CIRCUITS AND METHODS FOR SPATIAL EQUALIZATION OF IN-BAND SIGNALS IN MIMO RECEIVERS

摘要

A circuit for spatial equalization, comprising: circuit elements each comprising four variable transconductors, in each of the circuit elements: an input of a first variable transconductor (VT) is connected to an input I and an output of the first VT is connected to an output I; an input of the second VT is connected to an input Q and an output of the second VT is connected to output I; an input of the third VT is connected to input I and an output of the third VT is connected to the output Q; and an input of the fourth VT is connected to input Q and an output of the fourth VT is connected to output Q; the input I of each of the first plurality of circuit elements are connected together; and the input Q of each of the first plurality of circuit elements are connected together.