ADS仿真噪声系数时遇到个问题

Warning detected by hpeesofsim during SP analysis `SP1'.
    The simulation temperature (25.0 C) is not the same as the IEEE standard noise temperature (290 K or 16.85 C) in the noise analysis `SP1'.
    If the simulation temperature is not equal to the IEEE standard temperature, then the loss and the noise figure will not agree for a passive circuit.
    The `Temp' parameter on the Options item can be set to 16.85 C to eliminate this warning message.
请问这个仿真温度怎么设置啊?

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