Majid Rafei
Junior Member level 2
I am working on a LNA which has an active feedback. P-1dB and IIP3 are simulated using Spectre and results are as follows:
P-1dB:
IIP3:
In addition, these parameters are simulated using HSPICE and results are as follows:
I have two questions:
1) simulation conditions for both Spectre and HSPICE are the same, why results are different?
2) why P-1dB is greater than IIP3 (in normal condition IIP3 is 10 to 15 dBm greater than P1dB)?
P-1dB:
IIP3:
In addition, these parameters are simulated using HSPICE and results are as follows:
I have two questions:
1) simulation conditions for both Spectre and HSPICE are the same, why results are different?
2) why P-1dB is greater than IIP3 (in normal condition IIP3 is 10 to 15 dBm greater than P1dB)?