RF peak detection scheme using baseband circuits

A circuit, comprising:

• an amplifier configured to amplify a first input signal and a second input signal to generate an amplified signal, wherein the first input signal and the second input signal have a first relative amplitude difference and are associated with a first frequency band;
• a mixer configured to adjust the amplified signal to a second frequency band;
• a first filter coupled to the mixer, and configured to generate a first filtered signal and a second filtered signal associated with the second frequency band and having a second relative amplitude difference between the first filtered signal and the second filtered signal, the second relative amplitude difference being substantially different from the first relative amplitude difference;
• and
• a second filter configured to invert the first filter to generate a first output signal and a second output signal having a third relative amplitude difference that is substantially similar to the first relative amplitude difference.