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How to simulation Mixer LO-RF in cadence ?

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simulation mixer

Dear all :
someone know how to simulation Mixer LO-RF in cadence?

thanks.
 

cadence port noiseless

no one knows what you wan to express yourself. what do u want to simu?
 

mixer cadence

noiseless said:
no one knows what you wan to express yourself. what do u want to simu?
Click to expand...


Sorry ,
In mixer simualtion , I want to simulation LO-RF feedthrough by cadence spectreRF.
But I don't know how to do it .I can't find this part simulation method in spectreRF manual . So I hope someone can help me .

thanks
 

mixer lo feedthrough

measure the gain @ RF side and PAC set in LO
 

simulation mixer

u need to measure the LO power at the RF port , and compaere it to the LO power , u get the feedthrough

khouly
 

simulation ringmischer

khouly said:
u need to measure the LO power at the RF port , and compaere it to the LO power , u get the feedthrough

khouly
Click to expand...

you mean broke RF input source and fed LO power run transient do FFT
and compare LO power at the RF port to LO power ?

if yes, I have do it , LO-RF feedthrough is ver small , you can see the attach file.

I don't think the result is right . Have any suggestion ?

thanks
 

mixer cadence simulation

noiseless said:
measure the gain @ RF side and PAC set in LO
Click to expand...

I don't understand your means.
please describe more clear.

thanks
[/youtube]
 

no , leave the circuit as it is , and measure the spectrum in the RF port and check if there is any LO freq or not

khouly
 

khouly said:
no , leave the circuit as it is , and measure the spectrum in the RF port and check if there is any LO freq or not

khouly
Click to expand...

Now my environment setup is same as run conversion Gain using pss
and plot RF port to check if there is any LO freq .
Plot RF port RF amp is -60dbm , Lo amp is -260dbm ,
I don't think this result is right , because LO feedthrough is too small.
Do you have any suggestion ?

thanks.
 

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