Sinusoidal signal multiplier circuit

An integrated circuit comprising:

• a circuit supporting substrate;
• and
• a sinusoidal signal multiplier circuit, disposed on the circuit supporting substrate, for producing an output sinusoidal signal substantially without any DC component, the sinusoidal signal multiplier circuit comprising:
• a first multiplication cell having a first input for receiving a first sinusoidal signal and a second input for receiving a second sinusoidal signal, the first multiplication cell for delivering a first output signal;
• a second multiplication cell substantially identical to the first multiplication cell having a first input for receiving the second sinusoidal signal and having a second input for receiving the first sinusoidal signal, the second multiplication cell for delivering a second output signal;
• and
• an adder circuit, electrically coupled to the first multiplication cell and to the second multiplication cell, for adding the first and second output signals in order to provide out of the sinusoidal signal multiplier circuit an output signal substantially without any DC component, wherein each of the first and second multiplication cells comprises an asymetrical multiplication cell having at each of its two inouts a delay element to introduce a phase delay to the respective first and second sinusoidal signals.

A method comprising:

• receiving a first sinusoidal signal;
• receiving a second sinusoidal signal;
• providing a first multiplication output signal by adding a first delay to the first sinusoidal signal and a second delay to the second sinusoidal signal, and multiplying the delayed first sinusoidal signal and the delayed second sinusoidal signal;
• providing a second multiplication output signal by adding the first delay to the second sinusoidal signal and the second delay to the first sinusoidal signal, and multiplying the delayed first sinusoidal signal and the delayed second sinusoidal signal;
• and
• providing an output sinusoidal signal that is substantially without any DC component by adding the first multiplication output signal and the second multiplication output signal.