Suggestion required to make gain positive and NF less than7.0dB

[pforpashya]

Show us ADS Netlist or Schematic.

give me a min

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Here is the schematic,


is it correct?

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Show us ADS Netlist or Schematic.

I recommend you to attend ADS training class held by Keysight technology with paying money.

OK.

Thanks for your valuable time.

 

[pancho_hideboo]

is it correct?

Wrong.

AC analysis is done at only vds=vgs=0.

I recommend you to attend ADS training class held by Keysight technology with paying money.

 

[pforpashya]

I agree I am extremely noob in ADS and my aim really big.....but currently attending ADS paid session is not possible for me alone

so my last attempt to get cgs is,

ok I have attempted to get Cgs using following schematic, I hope its correct.
Now in display window I am not able to set AC.vgs=1 and not able to sweep against DC.vgs


this is the last parameter I need so kindly reply if you can

 

[pancho_hideboo]

ok I have attempted to get Cgs using following schematic, I hope its correct.

Apparently wrong.
And Cgs is dependent on both Vgs_DC and Vds_DC.

 

[pforpashya]

Apparently wrong.
And Cgs is dependent on both Vgs_DC and Vds_DC.

ok

So can you tell me how can I modify the above schematic?

 

[pancho_hideboo]

Use two parameter sweep controllers and one AC analysis Controler.

 

[pforpashya]

Use two parameter sweep controllers and one AC analysis Controler.

got Cgs around 40fF

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I done DC analysis of MOSFET both CS and cascaded stage by giving VDS as 0.6V(half of 1.2 my VDD) but when I connect them as cascode stage how to get that 0.6 v in between of two MOSFET

I think I have to play with VGS then but again all the values will change which I earlier simulate

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I will go through text book now

 

[pforpashya]

well I have simulated the circuit

And the maximum available gain is negative and noise figure is also high

Any comments will be appreciated....