Power Amp
I have a problem with a design of a power amplifier in 2.4Ghz.He found that I have to use the S-parameters great signal, they are taken off the curves VI transistor, my problem is to choose a model for moving from curve VI-S parameters of great signal and can not get the models someone knows anything about this?
Thx
Hello wakuhuaco,
If I understood your query correctly then you looks have problems in PA design using Vendor device S-parameter file right?
In order to design Power Amplifier (PA), you need to have nonlinear model (Spice)
of the device so that you can get IV curves, DC Bias analysis & spectrum plots...
If you have only S-parameter file (*.s2p) then it is difficult to design PA design and
you can do linear analysis only with s parameters...
Go through this for details on PA analysis
http://www.rfpoweramp.com/papers/rfpa_mwo.pdf
With Best Regards,
manju
ah ok thx manjunatha_hv.
Then I have to ask the manufacturer of the device model nonlinear transistor
Thx :)
Hi Manju,
The tutorial by AWR is excellent. Well, do you know about any power amplifier modules in the market capable of operating in 400-450MHz with an output power of 20W. We came across a device from Sirenza, but we are struggling hard to linearise it for our application (TETRA).
Regards,
Vishnu.
Hello Vishnu,
I found Centellax products may be good or fits your application...
These are very broadband amplifiers...
http://www.centellax.com/products/mi..._modules.shtml
http://www.centellax.com/products/te...essories.shtml
--manju---
Added after 3 minutes:
Hello wakuhuaco,
The Nonlinear device manufacturers are
Avago,
PolyFet,
Eudyna,
Freescale,
Mitsubishi,
Metlics,
Excelics,
Infineaon,
NEC,
NXP, etc...
Also Modelithics provides good Nonlinear models for MWO
http://www.modelithics.com/products.asp?a=view&id=3
http://www.modelithics.com/products.asp
---manju---