how to simulate mixer noise in HB simulation?
时间：04-09
整理：3721RD
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Hi Guys
Can anyone show me or give me a tutorial on how to simulate the noise figure on mixer? DO I have to use port to get noise figure like simulation in LNA? If I have to use port to do the simulation, The input port and output port resistor are 50 ohms and 1M ohms seperately. I followed the step in http://www.ece.uci.edu/eceware/ads_d...2.html#1105070, which give me a nf(2)=30. I am not sure where is the error or it is the correct answer? Anyone can give me the suggestion. The only thing I can think is the input port resistor and output resistor port have huge difference, any suggestions? Is there a way to simulate it without matching the circuit?
Thanks a lot
Can anyone show me or give me a tutorial on how to simulate the noise figure on mixer? DO I have to use port to get noise figure like simulation in LNA? If I have to use port to do the simulation, The input port and output port resistor are 50 ohms and 1M ohms seperately. I followed the step in http://www.ece.uci.edu/eceware/ads_d...2.html#1105070, which give me a nf(2)=30. I am not sure where is the error or it is the correct answer? Anyone can give me the suggestion. The only thing I can think is the input port resistor and output resistor port have huge difference, any suggestions? Is there a way to simulate it without matching the circuit?
Thanks a lot
yeah , u should for sure use ports. also check the port numbring. it is very crtical coz it instruct the ADS to calculate the NF at certain point
Khouly