Patent ID: 9478204
Filing Date: 2016-10-25
CPC Classification: G10H,H03D

Claim Text:
1. A sub-harmonic mixer, the sub-harmonic mixer comprising: a first and a second input port; an output port, wherein the sub-harmonic mixer is arranged to output at the output port products of signals applied at the first and second input ports; and a first stage including a mixer and a second stage including an amplifier, said stages being arranged in series with each other, so that an output port of the first stage is connected to an input port of the second stage, with the first and second input ports of the sub-harmonic mixer being input ports of the first stage, and the output port of the sub-harmonic mixer being an output port of the second stage, wherein the first stage is arranged to generate a fundamental product and a first third order intermodulation distortion product that are in-phase with each other, and the second stage is arranged to generate a second third order intermodulation distortion product that is in anti-phase to the fundamental product generated by the first stage.