Mixer second-order input-intercept point temperature compensation

A method comprising:

• receiving, via processing circuitry, a set of analog-to-digital converter (ADC) power samples at a mixer;
• receiving, via the processing circuitry, a set of phases associated with the set of ADC power samples;
• receiving, via the processing circuitry, a closest phasor based on a subharmonic of an ADC clock and the set of phases;
• and
• generating, via the processing circuitry, a compensation value based on the set of ADC power samples and the closest phasor;
• and
• applying, via the processing circuitry, the compensation value to a calibration circuit of the mixer.

One or more non-transitory, tangible, computer-readable media that store instructions configured to cause a processor to:

• receive a beat frequency of a second-order intermodulation product;
• receive a subharmonic of an analog-to-digital converter (ADC) clock that corresponds to the beat frequency;
• receive a first set of ADC power samples;
• perform a first transform on the first set of ADC power samples;
• receive a first set of phases associated with the first set of ADC power samples;
• receive a second set of ADC power samples;
• perform a second transform on the second set of ADC power samples;
• receive a second set of phases associated with the second set of ADC power samples;
• rotate the second transform to align the second set of phases and the first set of phases;
• and
• generate an ADC power value based on the first transform and the second transform as rotated.