ads2013目标优化时出错

jamanzhang

ads2013目标优化时出错，说expr有问题，请问怎么解决？
# a& J$ G1 E; g4 B2 aError detected by hpeesofsim during Nominal Optimization `Optim1'.
Optimization/Statistics Error: Please check for valid `Expr' field in OptimGoal/YieldSpec item
9 O' ]& L8 E: M3 K- `    Check the following device:
    OptimGoal1
  S. N* \! ?: i7 eError detected by hpeesofsim during Nominal Optimization `Optim1'.
) u* V0 W2 F3 u& ~  Y" Y% b5 p    'Optim1[1]': circuit simulation fails.
Error detected by hpeesofsim during Nominal Optimization `Optim1'.
    Optim1[1] can't do cost evaluation.
Error detected by hpeesofsim during Nominal Optimization `Optim1'.

jamanzhang

研究后发现表达式有误，正确“dB（S21）”，请大家了解。

jamanzhang

史密斯圆图资料整理，仅供参考！