ADS2013.06仿真时出现问题

guoeda123

6 Z3 h# d2 q) S各位，我碰到个情况解决不了了 ，照着ADS2008那本书仿真低噪声放大器，我用的ads13.06版本的，仿真噪声系数的时候NFmin比书上的大不少，并且还有仿真温度是25度，和ieee标准的16度不一样，在option里改 ，但是找不到改温度的选项
Warning detected by hpeesofsim during SP analysis `SP1'.
% a) O! a* a# ]    The simulation temperature (25.0 C) is not the same as the IEEE standard
" _! J7 E- F4 ]3 a0 r9 x5 Q- r    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,
0 F0 R! u; T" |  }    then the loss and the noise figure will not agree for a passive circuit.
8 M" F4 h- @1 p* l( y2 z' V    The `Temp' parameter on the Options item can be set to 16.85 C to
    eliminate this warning message. 有哪位知道这是怎么回事？谢谢
/ j; j. Z* U& d' j* n4 }4 }5 @