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How to design I/O matching circuits for LNA in ADS?

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adnan siddqui

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MATCHING CIRCUIT FOR LNA

I Want to design a matching circuit for LNA.I have selected the transistor and dc biased it.Also plot the constant gain circles and noise circle.Now,Please guide me that how I design the input and output matching circuits using a software ADS for a frequency 2.1 GHz.
 

Re: MATCHING CIRCUIT FOR LNA

adnan siddqui said:
I Want to design a matching circuit for LNA.I have selected the transistor and dc biased it.Also plot the constant gain circles and noise circle.Now,Please guide me that how I design the input and output matching circuits using a software @DS for a frequency 2.1 GHz.
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1)mark "v" at the sweep to calc noise.
2) display conj(S_opt)
3) math the s*opt to 50 ohm
 

Re: MATCHING CIRCUIT FOR LNA

you may see the the design guide in ads
 

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