Help with Low-Noise-Amplifiers

You might need to look at manufacturer application notes. For example, http://cp.literature.agilent.com/lit...989-2273EN.pdf

It contains usful information on the device such as how to stabilize it.

http://odysseus.ieee.org/ieeesearch/...imageField.y=3

Hi,

Following are the good documents on LNA design using RF CAD tool (Microwave Office)
1. 17GHz and 24GHz LNA Designs based on Extended S-parameter with Microstrip-on-Die
in 0.18μm Logic CMOS Technology paper (PDF) by Intel Research & Development

http://www.appwave.com/src/news/articles/AR0307.pdf

2.Broadband_RF_LNA.pdf

3. Designing a Low-Noise Amplifier with VoltaireLS (LNA_Appnote.pdf) by Maas
and
4. http://web.syr.edu/~nkkunder/Nisha%20Projects/LNA.pdf
http://web.syr.edu/~hssavci/myweb/Amplifier.pdf
I hope this helps in LNA design & analysis

good luck

this is one of the most cited papers about LNA

sir,
i want to drsign cmos LNA using awr tool .In my circuit i hav each and every value.
i draw that same ckt in tool but i am not getting same results.
For s11,s22,s12 parameters i want nagative values but i am getting positive values.
for gain(s21),i want positiv value but i am gettng negative value.
plz send somae awr manual + cmos LNA design and i am sending my ieee paper also
plz help me..

See this link http://www.chic.caltech.edu/Publicat...Concurrent.pdf

sorry but how u know that transistor model is correct?

Hello Rizwan,

OKay no problem we can help to resolve these issues...

I went through the article & found the following, in order to construct MWO schematic...
What Type of CMOS device Model Parameters you used? (say BSIM model with exact parameters)
Or Do you use the S-parameter file of the CMOS Device model?
Or Do you use any specific Process Design Kit (PDK) CMOS model such as TOWERJAZZ? or TSMC?

Send / uplod your AWR MWO project file *.emp so that I will try to help you better...

---manju---

Hi，Manjunatha_hv
，my lna in ads also has the same problem as
rriizzwwaann's could you help me correct it ,thank you !
I upload it in
https://www.edaboard.com/thread209435.html#post884391