Mixer circuit and communication apparatus including mixer circuit

Abstract

A mixer circuit which outputs a first output signal and a second output signal, in which are mixed a first input signal and a second input signal, includes a first grounded source amplifier circuit which amplifies the first input signal, a second grounded source amplifier circuit which amplifies the second input signal, a first signal output unit which outputs the first output signal, a second signal output unit which outputs the second output signal, a first transistor group including n rows and m columns (n is an integer equal to or greater than two, m is an integer equal to or greater than two) of transistors connected between the first grounded source amplifier circuit and the first signal output unit, a second transistor group including n rows and m columns of transistors connected between the first grounded source amplifier circuit and the second signal output unit, a third transistor group including n rows and m columns of transistors connected between the second grounded source amplifier circuit and the first signal output unit, a fourth transistor group including n rows and m columns of transistors connected between the second grounded source amplifier circuit and the second signal output unit, and n×m×k (k is 1 or 2) control signal lines to which n×m×k control signals which drive the first transistor group and the second transistor group, and drive the third transistor group and the fourth transistor group.

Dependencies are inferred from the claim text.