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You can not understand anything regarding unidirectional and bidirectional at all.

And you must not use formulation based on s-parameter, since you can not understand s-parameter.

Still you can...

Simply cascade them.
Consider block diagram not verilog-A.
That’s all.

BTW, can you surely understand unidirectional model and bidirectional model ?

Verilog-A has no relation at all.
Simply you are very lack of knowledge of very basic linear circuit theory.

Circuit which is substituted by nport has no direct relation to any of z,y, s.

It...

Confirm whether model file surely include statistical descriptions.

Surely understand nport.
nport can work as any of Z,Y,H,F,S matrix even if file of nport is S-parameter.

Surely learn very basic linear circuit theory before EDA Tool Play.

No.
Surely learn a definition of S-parameters.

You have to calculate a1,a2,b1,b2 from s11,s12,s21,s22.
That’s all.

It seems you can not understand S-parameter at all as same as many people in...

No.
Frequency bands can be defined for them, although they are not practical values.

Simply you can not understand S-parameter at all.

You ignore current. It results in ignorering impedance.
Can you understand energy conservative model and signal flow model ?

No.

Simply you have mistakes in Verilog-A code or/and Netlist.

Show me both Verilog-A code and Netlist.

Show me header of your *.s2p.

Correction.

`include "constants.vams"
`include "disciplines.vams"

module my_freq(out);
output out;
voltage out;

electrical gnd;

`include "constants.vams"
`include "disciplines.vams"

module my_freq(out);
output out;
voltage out;

electrical gnd;
ground gnd;

Compare CDF parameter and spectre -h nport.

Or simply use gnd node in Verilog-A.
Ground node declaration.

If you insist on Verilog-A, instantiate spectre’s primitive nport in Verilog-A.

https://designers-guide.org/forum/YaBB.pl?num=1574240440#2

Other possibility is “deriv(ac_stim(1))/(M_TWO_PI)”.
...

https://designers-guide.org/forum/YaBB.pl?num=1574282166

Use file name of “*.sv”.

Surely understand basic things correctly before EDA Tool Play.
This is very true for all your previous posts.

Use spectre primitive, nport.

If you use Keysight ADSsim, use DAC(Data Access Component).

https://www.edaboard.com/showthread.php?364412/page2#23

If you mean Verilog-A, $freq is not available in Verilog-A.

https://www.edaboard.com/showthread.php?373837#6

Simply do one tone(LO) envelope analysis.
fs and DAC output are treated as baseband signal.
That’s all.

Use resonator tank, if your PA is for narrowband application.
Otherwise, use low pass filter.

Surely learn very basic things before EDA Tool Play.

See followings.
https://designers-guide.org/forum/YaBB.pl?num=1260978648
https://designers-guide.org/forum/YaBB.pl?num=1264511244/3#3
https://designers-guide.org/forum/YaBB.pl?num=1270105534/1#1

Use skill function in Cadence ViVA.
Simply x-y plot with sampling at appropriate time points.

Regarding EVM, calculate rms error value between output signal and reference signal.

Simply add label to net.

Voltage wave is reflected.

Surely read and learn Power wave in Pozar’s Book, before EDA Tool Play.

See the followings.
https://www.edaboard.com/showthread.php?378353#5...

Yes........

Negative real part is due to Y12.

You don’t care about feedback path of each MOSFET at all.

Surely learn very basic things before EDA Tool Play which you like.

Actually it is not at same time, if you use Cadence-ADE-XL(GXL).
It is multiple launchs of simulation.

Synopsys HSPICE and Keysight ADSsim have optimizer in simulator.
However Cadence Spectre...