本帖最后由 guoeda123 于 2014-9-27 13:26 编辑 5 [: w" O9 ]* h+ z& o) `) i: d2 B4 G4 P: `; W. u" q1 @
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" {' ]$ I Z- m
Warning detected by hpeesofsim during SP analysis `SP1'. 8 Y1 `, J/ `5 _, X The simulation temperature (25.0 C) is not the same as the IEEE standard' d# p" t f& i2 g0 g5 q
noise temperature (290 K or 16.85 C) in the noise analysis `SP1'.- m$ ^/ f/ \: g% p: p+ f1 K9 ^
If the simulation temperature is not equal to the IEEE standard temperature, / n1 t/ u+ j8 \# q5 k then the loss and the noise figure will not agree for a passive circuit.8 Q2 w; I3 x) T3 x6 z6 {
The `Temp' parameter on the Options item can be set to 16.85 C to7 f3 N/ _. z: H. z% v) z
eliminate this warning message. 有哪位知道这是怎么回事?谢谢2 l* {' X( a! H5 Y