hi all..
jus wanna know...what does harmonic balance simulation shows...like say i performed harmonic balance simulation 1-tone on an amplifier at some frequency say 10GHz (input power 10dbm)...what i got was about 7db at 10GHz and -ve db values at the other 5 harmonics...how can i interpret it..
i wanna ask...what is 1 db compression point and how do i determine that...(this may sound a silly basic question to u ..but am very new to this field..so..)
and one more thing...if i am getting some -ve db values at other harmonics (please refer to my original question)..so does this means that the ckt is not going into non-linearity...
the 1 dB coompression point is the point the gain well fall be 1 dB from the linear valuse , this is happend due to saturation of the amplifier
the -ve this mean that the power in these harmonics , but as these harmonics are generated the circuit is nonlinear
but as these harmonics become less , this means the linear behaviour of the circuit is good
yeah , in harmoic balance , make the input power to be swept , and plot the output power of the first harmonic so , the graph should show u the 1 dB compression point