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？
Error detected by hpeesofsim during Nominal Optimization `Optim1'.
Optimization/Statistics Error: Please check for valid `Expr' field in OptimGoal/YieldSpec item
. k" L0 r' b2 |1 K1 E    Check the following device:
- ~" R: U3 l" r: {$ h& x    OptimGoal1
- D7 D% w0 q& f# V) V/ V5 CError detected by hpeesofsim during Nominal Optimization `Optim1'.
. W( P1 J! f; ^. D- a    'Optim1[1]': circuit simulation fails.
6 X% B0 u9 K  YError detected by hpeesofsim during Nominal Optimization `Optim1'.
% n6 R9 d! v2 b    Optim1[1] can't do cost evaluation.
5 A6 H. c6 V7 C  H3 Q: ]5 j* r+ wError 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！