Detector system with adjustable phase stage

A detector system comprising:

• a local oscillator port;
• a radio frequency port;
• an oscillator providing a local oscillator signal having amplitude-modulated (“AM”) noise coupled to the local oscillator port;
• a first detector configured to detect at least the local oscillator signal to produce a first detected signal having at least a first detected AM noise signal component and a demodulated signal component at a first phase;
• a second detector configured to detect a second high-frequency signal having the AM noise to produce a second detected signal having at least a second detected AM noise signal component at a second phase;
• an algebraic combining network combining the first detected signal and the second detected signal to produce an output signal including the demodulated signal component at an output;
• and
• a phase delay disposed between one of the local oscillator port and the radio frequency port and the output of the algebraic combining network calibrated to offset the first phase from the second phase to improve signal-to-noise ratio at the output.