Local oscillator amplification with reduced harmonic generation

A method for reducing harmonics, the method comprising:

• splitting a local oscillator (LO) signal into a first LO signal and a second LO signal;
• generating one of either a first enable signal or a second enable signal based on a frequency of the LO signal;
• amplifying and filtering, by a first band processing circuit, the first LO signal to generate a first band LO signal, in response to the first enable signal;
• amplifying and filtering, by a second band processing circuit, the second LO signal to generate a second band LO signal, in response to the second enable signal;
• and
• combining output paths of the first band processing circuit and the second band processing circuit to provide either the first band LO signal or the second band LO signal as a reduced harmonic LO signal.

A method for fabricating a harmonic reduction system, the method comprising:

• coupling a splitter circuit to a local oscillator (LO), the splitter circuit configured to split a signal from the LO into a first LO signal and a second LO signal;
• configuring a band selector circuit to generate one of either a first enable signal or a second enable signal based on a frequency of the LO signal;
• coupling a first band processing circuit to the splitter circuit, the first band processing circuit configured to amplify and filter the first LO signal to generate a first band LO signal, in response to the first enable signal;
• coupling a second band processing circuit to the splitter circuit, the second band processing circuit configured to amplify and filter the second LO signal to generate a second band LO signal, in response to the second enable signal;
• and
• coupling a combiner circuit to the first band processing circuit and the second band processing circuit, the combiner circuit configured to combine output paths of the first band processing circuit and the second band processing circuit to provide either the first band LO signal or the second band LO signal as a reduced harmonic LO signal.