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DESIGN OF LOW NOISE AMPLIFIER

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check this

u created the ATF subcircuit in wrong way u connected the source in the drain terminals

check this , i have modified the poject
 

hi khouly


thank you very much .....we simulated your modified circuit so we got the N.F is 0.53db. i want to talk with you can you give your mobile or land no.iam really very very thankfull to you.


venkat
 

Hi Venkat,

I am very Glad that this issue is resolved.

For creating the gerber file you need to create the layout first, then create artwork, then in the layout or artwork window go to the File menu and select Export.
A dialog box will come and give you some options to select the type of output file you want to create and also the destination path for that file.

Amongst the options for output file type , there is a choice “Gerber”, select Gerber and browse your destination towhat you want and it will give you another window with name Gerber.
Here you can setup your gerber file to be created.

Enjoy, and don’t forget to press Helped me botton!!!

Mehdi
 

hi mehdi

thank u very much for your help.
 

You must check the noise figure after putting uStrip and real components with real model provided from manufacurer for them.

for instance if you use ATC caps you should use actual models for actual real values available from company.other wise the results you are going to get is very different from what you simulated

i am very busy and less likely I can do these for you , since this kinds of things eeds a lot of time , you have to optimize your circuit and get final answer then
try to create the PCb and gerber files, because there is no point to create the gerber if your circuit is not finalized yet.

mehdi
 

u need to use ads optimization , to varay the valuse of the L, C , to achive the required noise figure

or u cna use manual tuning to get it also , even u can change the layout components to to get the reqired spec's


khouly
 

hi khouly



we sent a mail to you .did u check the mail,if you are free please check your email.


thanks
 

Thanks!
But i have q question about the LF maching, how to control the noise low?
 

what do u mean by noise low ?

khouly
 

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