ADS求助，已经快被逼疯了。

桃儿爷。

请问楼主这个问题解决了吗，我最近在做作业，也是出现了这样的问题。在原理图S参数仿真这一步，本来应该在960mhz，我的结果却一直在600多，一直有这种warning无法解决。楼主能交流一下吗

louiszhu

子电路里的TERM为啥不X掉

达叔100

是不是因为没有加扼流电感和隔直电容啊？

阿飞7812

回复 1# lysummerrain
到处找不到这书的下载，能分享下吗

zhaoxiumao

单独的用可以，一起用不行，是不是冲突了？ 路过，打酱油。

kudzus

回复 11# 桃儿爷。
     好久没有看论坛了，我来回答下。     该警告提醒有些晶体管的引脚没有连接。而为了求解的方便性，将那个端口连接上一个极大的电阻，这样做的好处是方便建立整个电路的求解矩阵。仅此而已。实际上如果你自己的晶体管电路如果都连接正确，基本不用管这个警告。

ADS官方解释如下：

In the case of a circuit with a wire that is missing, a message such as the following can appear in the Simulation/Synthesis Messages window during a simulation:

Warning detected by HPEESOFSIM during DC analysis "DC1".
Circuit as given has no unique solution.
A virtual resistance of 1 TOhms was added to each node.

In the case of unconnected wires or pins, choose
Tools
>
Check Representation, then select
Open connections
and click
OK. All unconnected wires and components are highlighted, making them easily visible on the screen. Connect these to the correct circuit node.

yll233

   

裴阳 发表于 2016-5-6 09:30
我也出现了这个问题，电路真的完全没有题，我不知道这个warnning到底是什么意思 ...

我也出现这个问题了，请问你最后解决了吗？我实在没辙了

清枫

我也遇到这个问题了，发现有的节点不满足节点电流定理，用的都是理想器件，应该是不同的理想器件的电压电流关系冲突了。

multibooter

You can ignore this warning, but there is a float node in your circuit that you have to take care of it. Maybe its in your Transistor Model.

multibooter

By the way be careful with the stability.