Z
zA123
Guest
I have to design a mixer , for a project , and I am not quite sure how do I setup the simulations for the harmonic balance and the 1 dB compression point .
For the harmonic balance I tried to find some examples and do anything close and the simulation take 20 minutes ( and hasn't been progressing much , i don't know if i did a mistake , or if I am down converting my signal to baseband should've I done 2 tones or one was enough ( even with 2 oscillators one the inverse of the other ) )
Also in the 1 dB compression point , i am not sure if my input port is Rfin ( at the gate of M0 ) or my LOs are the inputs , or to which source I should sweep my prf .
Tried both :
-When the input is RFin I have a bad dB compression point since my fundamental is horizontal and intersects the 1dB curve at the same point no matter what I change in the circuit
-When the input is one of the LO ports the curves are parallel and don't intersect so I cannot get a 1 dB compression point
For the harmonic balance I tried to find some examples and do anything close and the simulation take 20 minutes ( and hasn't been progressing much , i don't know if i did a mistake , or if I am down converting my signal to baseband should've I done 2 tones or one was enough ( even with 2 oscillators one the inverse of the other ) )
Also in the 1 dB compression point , i am not sure if my input port is Rfin ( at the gate of M0 ) or my LOs are the inputs , or to which source I should sweep my prf .
Tried both :
-When the input is RFin I have a bad dB compression point since my fundamental is horizontal and intersects the 1dB curve at the same point no matter what I change in the circuit
-When the input is one of the LO ports the curves are parallel and don't intersect so I cannot get a 1 dB compression point
