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本帖最后由 guoeda123 于 2014-9-27 13:26 编辑
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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- ]9 w* ]( m: T% ]' l
Warning detected by hpeesofsim during SP analysis `SP1'.
. G0 ^: @, H" w. R The simulation temperature (25.0 C) is not the same as the IEEE standard/ C$ V. L( w/ E2 v) w' f
noise temperature (290 K or 16.85 C) in the noise analysis `SP1'.7 y: G3 ]" V6 a$ q, X. o: p
If the simulation temperature is not equal to the IEEE standard temperature,
8 l1 R- X0 A! e then the loss and the noise figure will not agree for a passive circuit.
( }6 s. I" {4 F9 r2 u The `Temp' parameter on the Options item can be set to 16.85 C to
) e7 k8 p, f# s7 K3 | eliminate this warning message. 有哪位知道这是怎么回事?谢谢& G2 p8 x# I* p$ @+ Z
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