D
David
Guest
Hi,
Normally I can get IP3 from PSS or PSS/PAC simulation in IC4.46, QPSS
or QPSS/QPAC simulation in IC5.0. When I designed LNA before I can
easily get a clear 3:1 slope. But when I use cadence to run the IP3
simulation over one single device, I can not get the same 3:1 slope no
matter how I changed the tolerance parameters. I did not use matching
network in my simulation as in LNA design, only for the device itself.
Anybody met the similar problem before on IP3 simulation? Any
suggestions? Thanks!
David
Normally I can get IP3 from PSS or PSS/PAC simulation in IC4.46, QPSS
or QPSS/QPAC simulation in IC5.0. When I designed LNA before I can
easily get a clear 3:1 slope. But when I use cadence to run the IP3
simulation over one single device, I can not get the same 3:1 slope no
matter how I changed the tolerance parameters. I did not use matching
network in my simulation as in LNA design, only for the device itself.
Anybody met the similar problem before on IP3 simulation? Any
suggestions? Thanks!
David