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2 votes

Using antenna instead of an AC source on the circuit diagram

You can use an antenna as your signal source, only insert the needed connector. I assume you are going to use the amp in the frequency range the amp is designed for. There are some caveats: The ...
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4 votes

Using antenna instead of an AC source on the circuit diagram

For a drawing, you certainly can, but for simulation, you will need to use an AC source and a suitable impedance.
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3 votes

Using antenna instead of an AC source on the circuit diagram

Can I replace the ac source with an antenna? Sure you can. I'd expect reasonable results but, remember the circuit you showed is optimum in a specific area of the spectrum (looks like about 3 GHz to ...
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1 vote
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Is a LNA necessary in RF receiver circuits?

LNAs first task is, of course, Low Noise Amplifying. Whether it is needed or not should be made clear from a link budget analysis, losses, gains and margins are summed up and compared against ...
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