Can I measure the IP3,P1dB points of LNA using .s2p file?

Status
Not open for further replies.

kella

Member level 3
Joined
Jun 29, 2004
Messages
58
Helped
3
Reputation
6
Reaction score
0
Trophy points
1,286
Activity points
494
I have designed an LNA using .s2p file for transistor.

I want to know is it possible to measure the IP3,P1dB points of this LNA using .s2p file? If yes, please forward me some articles, whatever is possible.

thanks in advance.

/K
 

Re: LNA Linearity

No you can't. The s parameters are linear so they can just tell you things like forward/reverse gain, input/output return loss...
 

Re: LNA Linearity

Do you mean 'simulate' instead of 'measure' the IP3/P1dB performance using the s2p file?

If so, this is not possible. The transistor's s2p file is for linear (small signal) operation. For nonlinear simulation, e g IP3/P1dB performance simulation, a nonlinear model (SPICE model) of the transistor has to be used.

Which transistor are you using? I guess - based on your previous posts - you are using @DS simulation program? Is this correct?
 

LNA Linearity

I am using EC2612 (pHEMT) Transistor from United Monolithic Semiconductor (UMS). For simulations I am working with @DS.
 

Re: LNA Linearity

On page 7 in the EC2612 data sheet below, there is a nonlinear SPICE model you can enter into @DS.

**broken link removed**
 

    kella

    Points: 2
    Helpful Answer Positive Rating
Re: LNA Linearity

dear kella, may i ask you for EC2612'S S2P FILe? and other information acceptable from ADS.
THANKS
 

Re: LNA Linearity

Hi,

You should look for *.s2d file.


Goodluck...
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…