Panasonic ADS resistor models

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GSarris

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Good Evening
In an LNA design i have used the Panasonic ADS kit because it has some resistors i want to use. But when i change the ads resistor with the resistors from the kit, the noise figure drops. Is that possible? Usually when using resistors from manufacturers the noise is being increased... Is there any possibility to be something wrong with the kit?
 

If a resistor have more reactive parasitics (as capacitance or inductance), there is a possibility the input match of the LNA to move closer to gamma optimum, and get lower NF.
 

When you do Simulate > Generate Netlist, and open the netlist on a text editor, you can check the device models for missing/additional parameters.
 

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