how to Create your symbol in ADS ?

i am doing my research in the design of low noise amplifier.what is the software required and how can i operate it without any knowledge about it?

Thanks Volkier, I just got it.

I didn't know how to use the created symbol into the new design, but I figured it out.

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@venkatesh : I use ADS, its a very good Software.

you need the basics of ADS.

You can read the documentation of ADS and ask me if you were to have any doubts.

ADS is not an intuitive program. If you want a software suite that is more "user friendly" to new users, then I'd recommend Microwave Office for your LNA design. That said, I use ADS a lot for my work, and find that it's a very powerful and flexible program. However, like Linux OS'es, it's very configurable, but sometimes that means you do a LOT of setup yourself and some parts aren't that easy/obvious to find.