重贴一下报错内容：
Simulation / Synthesis Messages
Warning detected by hpeesofsim in topology check during circuit set up.
Number of nodes with only one device attached (topology corrected): 5
Number of nodes with no DC path to ground (topology corrected): 19
Error detected by hpeesofsim during TRAN analysis 'SP1'.
`test_1': S-parameters are not available at 0 Hz.
Error detected by hpeesofsim during TRAN analysis 'SP1'.
Fatal error occurred while evaluating model `MomCmpt', instance `test_1'.
Status / Summary
hpeesofsim (*) 331.200 May6 2008 (built: 05/06/08 00:26:15)
Copyright Agilent Technologies, 1989-2008.
******************************************
***** Abnormal Simulator Termination *****
******************************************
The simulator has unexpectedly terminated.
可能是你在layout下的频率设置和schematic下的不同。
频率设成一直也不管用啊，那位高手帮忙解答胰一下怎么化解啊？
Simulation / Synthesis Messages
Warning detected by hpeesofsim in topology check during circuit set up.
Number of nodes with only one device attached (topology corrected): 10
Error detected by hpeesofsim during SP analysis 'SP1'.
`X090224_output_1': Syntax error in the Layout Component ModelDatabase citi-file.
Error detected by hpeesofsim during SP analysis 'SP1'.
Fatal error occurred while evaluating model `MomCmpt', instance `X090224_output_1'.
Status / Summary
你用的似乎是ADS2008或者2009吧。
按我的经验，在layout中将频率从0开始设置而不是只设要仿真的范围。
你是lookalike回去的吗？sch仿真时，你是不能改变端口频率范围。lookalike成功后有个对话框要提示这些内容的
声明：网友回复良莠不齐，仅供参考。如需更专业系统地学习ADS，可以购买资深专家讲授的ADS最新视频培训课程。
