Could some one give me an answer about how does the even order harmonics of strong LO signal affect on FET mixer? Does the second order harmonics cause performance degradation? Of course they will produce mixing results but does they affect on the output signal quality on the fundamental frequency (RF_OUT)
only the odd harmonics are generally worried about because the even harmonics contribute mainly to the DC and dont contribute to the signal from the fundamental frequency....
well nonlinearity of the transfer function can be represented using equation in cosine/sine.... if u manipulate by using a cosine/sine input you will understand......
i was thinking that the even harmonic will contribute only to the DC... actually it was a inference from the manipulation of some equations for a non-linear system...
can u just clarify what all components will the 2nd harmonic introduce and will there be a component in the fundamental frequency....