AlexUA
Newbie level 6

Hello All.
Can anyone help?
I calculated the total 0IP3 of two amplifier block.
1st block has G1(power gain)=10dB and OIP3-1(output intercept point)=30dBm.
2nd block has G2(power gain)=6db and OIP2-2=35dBm
using derivation 1/OIP3=(1/OIP3-1*G2) + (1/OIP3-2) I calculated over 0IP3.
After i simulated it in AWR 2004 and take not accurate results . And i dont understand why OIPN is depend on input power of the fundamental component in ?
for example, at Pin=-30dBm AWR show OIP3=30.605 dBm
at Pin=-10Bdm AwR show OIP3=16.7 dBm
P1db=10dbm for two amplifiers.
:?: why it occurs? What desing environment I should use to verify any calculating concerned with intermodulation distortion?
Tank advance
Can anyone help?
I calculated the total 0IP3 of two amplifier block.
1st block has G1(power gain)=10dB and OIP3-1(output intercept point)=30dBm.
2nd block has G2(power gain)=6db and OIP2-2=35dBm
using derivation 1/OIP3=(1/OIP3-1*G2) + (1/OIP3-2) I calculated over 0IP3.
After i simulated it in AWR 2004 and take not accurate results . And i dont understand why OIPN is depend on input power of the fundamental component in ?
for example, at Pin=-30dBm AWR show OIP3=30.605 dBm
at Pin=-10Bdm AwR show OIP3=16.7 dBm
P1db=10dbm for two amplifiers.
:?: why it occurs? What desing environment I should use to verify any calculating concerned with intermodulation distortion?
Tank advance