Dual-LO mixer and radio

A receiver comprising:

• a first mixer for receiving a first reference signal of a first reference frequency and a second reference signal of a second reference frequency and converting an input RF (radio frequency) signal into a first conversion signal using the first reference signal of the first reference frequency and the second reference signal of the second reference frequency, wherein the converting is performed by a switch circuit including at least one switch that conditionally connects two circuit nodes depending on an exclusive NOR operation on the first reference signal and the second reference signal;
• a second mixer for receiving a third reference signal of the first reference frequency and a fourth reference signal of the second reference frequency and converting the input RF signal into a second conversion signal using the third reference signal of the first reference frequency and the fourth reference signal of the second reference frequency, wherein the converting is performed by a switch circuit including at least one switch that conditionally connects two circuit nodes depending on an exclusive NOR operation on the third reference signal and the fourth reference signal;
• a third mixer for receiving the first reference signal of the first reference frequency and the fourth reference signal of the second reference frequency and converting the input RF signal into a third conversion signal using the first reference signal of the first reference frequency and the fourth reference signal of the second reference frequency, wherein the converting is performed by a switch circuit including at least one switch that conditionally connects two circuit nodes depending on an exclusive NOR operation on the first reference signal and the fourth reference signal;
• a fourth mixer for receiving the third reference signal of the first reference frequency and the second reference signal of the second reference frequency and converting the input RF signal into a fourth conversion signal using the third reference signal of the first reference frequency and the second reference signal of the second reference frequency, wherein the converting is performed by a switch circuit including at least one switch that conditionally connects two circuit nodes depending on an exclusive NOR operation on the third reference signal and the second reference signal;
• a first summing circuit for summing by addition the first and the second conversion signals to generate a first output signal;
• and
• a second summing circuit for summing by addition the third and the fourth conversion signals to generate a second output signal.