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Help me design a LNA in 0.18um technology and in 2.4GHz with ADS

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sasa0

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we want to design a LNA in 0.18um technology and in 2.4GHz with ADS,but we dont how to design and what is the procedure.please help us...
we should have plots of NF vs freq & S11,S12,S21,S22 vs freq & IP3 & P1dB & Zin
thank you
 

Re: LNA Design

sasa0 said:
we want to design a LNA in 0.18um technology and in 2.4GHz with ADS,but we dont how to design and what is the procedure.please help us...
we should have plots of NF vs freq & S11,S12,S21,S22 vs freq & IP3 & P1dB & Zin
thank you
Click to expand...

There is LNA example in ADS design guide, you can follow it
 

Re: LNA Design

how to set the resonance frequency ? for example we want to have the S parameters resonate in the 2.4 GHz,what should we do?what components in the cascode LNA influence the resonance frequency?
 

Re: LNA Design

Hi, sasa0.
At first you should choose the structure of your LNA, for example - whether it is one or two stages, what type of amplifier is either stage will be (common-source, common-base,etc.).
sasa0 said:
how to set the resonance frequency ? for example we want to have the S parameters resonate in the 2.4 GHz,what should we do?what components in the cascode LNA influence the resonance frequency?
Click to expand...
The resonance frequency is determined by load LC tank. The parasitic capacitance from drain (or collector) of cascode transistor influences the resonance frequency.
 

Re: LNA Design

tnx,
our structure is cascode,
we want to measure Zin and IP3 and P1-dB, how can we do it?
 

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